Wisconsin Genealogy Research by John Von Haden --- Surnames: Olavissen thru Oprina
2000-2022 by John Von Haden  All rights reserved.

The list below (updated May 14, 2022) shows ancestry research and related original records which I have worked with over the past forty five years.
This includes family group sheets (see sample).... Civil and church records from Wisconsin, Germany, France, Switzerland, Luxembourg, Belgium and Norway....
SE Wisconsin cemetery, land and probate records.... State-wide obituaries, wedding stories, other news items....
Click here to search for various surnames or here to go to my home page.    
Please feel free to email me or call my landline with any questions.

Select items below using the checkboxes, then to see details or place an order.


Olavissen
 Olavissen, Johan P. - married Karen, 2 children from 1866 to 1867 - family group sheet

Oldenberg
 Oldenberg, Henry - marriage record, 1870's

Oldenburg
 Oldenburg, Auguste W. - marriage record, 1890's
 Oldenburg, Carl - born 1838, married Dorothea, 7 children from 1864 to 1874 - family group sheet
 Oldenburg, Carl - marriage record, 1860's
 Oldenburg, Carl - marriage record, 1870's
 Oldenburg, Carl - born 1852, lived in Milwaukee, married Wilhelmine, 2 children from 1874 to 1876 - family group sheet
 Oldenburg, Clara M. - marriage record, 1900's
 Oldenburg, David - married Henriette, 1 child born in 1856 - family group sheet
 Oldenburg, Dorothea Maria - marriage record, 1860's
 Oldenburg, Eliese Sophie - marriage record, 1880's
 Oldenburg, Friedrich - married Mina, 4 children from 1886 to 1896 - family group sheet
 Oldenburg, Fritz - marriage record, 1880's
 Oldenburg, Heinrich - lived in Milwaukee, married Dorothea, 1 child born in 1850 - family group sheet
 Oldenburg, Henriette Caroline - marriage record, 1870's
 Oldenburg, Herman Wilhelm - marriage record, 1890's
 Oldenburg, Hermann - lived in Milwaukee, married Bertha, 1 child born in 1890 - family group sheet
 Oldenburg, Joachim - lived in Milwaukee, married Elisabeth, 1 child born in 1854 - family group sheet
 Oldenburg, Joachim - married Sophie, 3 children from 1850 to 1862 - family group sheet
 Oldenburg, Johann - married Ida Wilhelmine Hermine, 3 children from 1882 to 1887 - family group sheet
 Oldenburg, Johann - born 1825, married Maria, 3 children from 1865 to 1874 - family group sheet
 Oldenburg, Johann - lived in Milwaukee, married Maria, 1 child born in 1871 - family group sheet
 Oldenburg, Johann - marriage record, 1880's
 Oldenburg, Johann - lived in Milwaukee, married Sophie, 6 children from 1877 to 1888 - family group sheet
 Oldenburg, Johann Friedrich - born 1843, married Johanna Friedrike Louise, 3 children from 1873 to 1877 - family group sheet
 Oldenburg, Johann Friedrich - marriage record, 1870's
 Oldenburg, Wilhelmine - marriage record, 1860's

Oldorf
 Oldorf, Wilhelmine - marriage record, 1880's

Olds
 Olds, Clark - marriage record, 1870's
 Olds, Harry A. - born 1875, lived in Bloomer, married Ida M., 2 children from 1913 to 1925 - family group sheet

O'Leary
 O'Leary, Arthur - marriage record, 1890's
 O'Leary, Benjamin 'Ben' - lived in Richfield, married Anna Carolina, 2 children from 1894 to 1894 - family group sheet
 O'Leary, Daniel J. - marriage record, 1890's
 O'Leary, Elizabeth - marriage record, 1880's
 O'Leary, Ellen T. - marriage record, 1890's
 O'Leary, Jeremiah - born 1839, lived in Mequon, married Eliza Ann, 11 children from 1870 to 1878 - family group sheet
 O'Leary, John - born 1845, lived in Erin, married Margaret, 9 children from 1868 to 1885 - family group sheet
 O'Leary, John - born 1849, lived in Mequon, married Maria, 2 children from 1873 to 1879 - family group sheet
 O'Leary, John - born 1803, lived in Mequon, married Mary, 4 children from 1839 to 1849 - family group sheet
 O'Leary, John A. - born 1873, lived in Mequon, married Mary, 1 child born in 1908 - family group sheet
 O'Leary, Julia - marriage record, 1880's
 O'Leary, Margaret 'Maggie'-Mrs. Thomas - death certificate, 1880's
 O'Leary, Mary - marriage record, 1890's
 O'Leary, Susan Jane - marriage record, 1900's

Olees
 Olees, Isaac Clark - marriage record, 1880's

Olig
 Olig, Louisa - marriage record, 1890's

Olinger
 Olinger, Anna - marriage record, 1860's
 Olinger, Anna Maria-Mrs. Conrad - death certificate in Germany, 1830's
 Olinger, August - born 1831, lived in Belgium/Franklin, married Margaretha, 7 children from 1859 to 1879 - family group sheet
 Olinger, Catherine Marie - marriage record, 1900's
 Olinger, Conrad - born 1791, married twice - Anna Maria, Catharina, 4 children from 1818 to 1842 - family group sheet
 Olinger, Conrad - marriage record in Luxembourg, 1830's
 Olinger, Johann - born 1818, married Catherine, 7 children from 1845 to 1854 - family group sheet
 Olinger, Johann - marriage record in Luxembourg, 1840's
 Olinger, John - death certificate, 1900's
 Olinger, John - marriage record, 1890's
 Olinger, John - born 1839, lived in Port Washington, married Theresa, 12 children from 1870 to 1888 - family group sheet
 Olinger, John M. - death certificate, 1890's
 Olinger, Katherine - marriage record, 1860's
 Olinger, Margaret - marriage record, 1900's
 Olinger, Mary Theresia - marriage record, 1900's
 Olinger, Nicholas - born 1808, lived in Polk/Fond du Lac, married Susanna, 8 children from 1832 to 1845 - family group sheet
 Olinger, Nicholaus 'Nick' - marriage record, 1870's
 Olinger, Peter - born 1820, lived in Belgium/Chicago/Port Washington, married Margaret, 4 children from 1852 to 1860 - family group sheet
 Olinger, Peter John - marriage record, 1890's
 Olinger, Susanna-Mrs. Nicholas - death certificate, 1880's

Oliver
 Oliver, Clara-Mrs. Mr. - death certificate, 1900's

Oliverson
 Oliverson, Emma K. - marriage record, 1890's

Ollenburg
 Ollenburg, Emilie Auguste - marriage record, 1850's
 Ollenburg, Hermann - lived in Milwaukee, married Ulrike, 4 children from 1886 to 1894 - family group sheet
 Ollenburg, Joachim Friedrich - married Dorothea, 5 children from 1825 to 1838 - family group sheet

Ollendike
 Ollendike, Gustav - marriage record, 1900's

Ollendorf
 Ollendorf, Elizabeth Christine - marriage record, 1900's
 Ollendorf, Friedrich 'Fritz' - born 1829, lived in Two Rivers, married Catharine, 4 children from 1866 to 1883 - family group sheet
 Ollendorf, Friedrich 'Fritz' - death certificate, 1900's
 Ollendorf, Friedrich 'Fritz' - marriage record, 1860's
 Ollendorf, Theresa Alvine - marriage record, 1880's

Ollhoff
 Ollhoff, Martin - born 1818, married Maria, 8 children from 1843 to 1860 - family group sheet

Ollinger
 Ollinger, Anna - marriage record in Germany, 1840's
 Ollinger, Anna - marriage record in Germany, 1850's
 Ollinger, Anna Maria - marriage record, 1880's
 Ollinger, Anna Maria-Mrs. Michael - death certificate, 1900's
 Ollinger, Catharina-Mrs. Johann - death certificate in Germany, 1840's
 Ollinger, Catherine - marriage record, 1880's
 Ollinger, Elisabeth - marriage record in Germany, 1840's
 Ollinger, Elisabetha-Mrs. Jacob - death certificate in Germany, 1870's
 Ollinger, Frank - born 1846, lived in Beaver Dam, married Marie, 4 children from 1878 to 1890 - family group sheet
 Ollinger, Frank - born 1863, lived in West Bend, married Pauline, 9 children from 1892 to 1909 - family group sheet
 Ollinger, Franz - born 1819, married Maria, 1 child born in 1862 - family group sheet
 Ollinger, Franz - death certificate, 1890's
 Ollinger, Franz - marriage record in Germany, 1850's
 Ollinger, Jacob - born 1798, married Elisabetha, 6 children from 1826 to 1838 - family group sheet
 Ollinger, Jacob - born 1868, married twice - Louisa Helena, Katherine, 1 child born in 1894 - family group sheet
 Ollinger, Jacob - death certificate in Germany, 1840's
 Ollinger, Jacob - marriage record in Germany, 1820's
 Ollinger, Jacob - marriage record in Germany, 1860's
 Ollinger, Johann - born 1787, married Catharina, 6 children from 1812 to 1826 - family group sheet
 Ollinger, Johann - born 1789, married Margaretha, 8 children from 1814 to 1831 - family group sheet
 Ollinger, Johann - born 1817, lived in West Bend, married twice - Maria Barbara, Katharina, 11 children from 1845 to 1873 - family group sheet
 Ollinger, Johann - death certificate in Germany, 1830's
 Ollinger, Johann - death certificate, 1900's
 Ollinger, Johann - marriage record in Germany, 1840's
 Ollinger, John - born 1826, married Maria, 9 children from 1846 to 1868 - family group sheet
 Ollinger, John - marriage record in Germany, 1840's
 Ollinger, Katharina - death certificate in Germany, 1820's
 Ollinger, Katharina - death certificate in Germany, 1850's
 Ollinger, Katharina - marriage record in Germany, 1850's
 Ollinger, Katherine E. - marriage record, 1900's
 Ollinger, Louisa Helena-Mrs. Jacob - death certificate, 1900's
 Ollinger, Margaret - marriage record, 1890's
 Ollinger, Margaretha - marriage record in Germany, 1850's
 Ollinger, Margaretha-Mrs. Johann - death certificate in Germany, 1850's
 Ollinger, Maria - marriage record in Germany, 1840's
 Ollinger, Maria Barbara-Mrs. Johann - death certificate in Germany, 1840's
 Ollinger, Maria-Mrs. Franz - death certificate, 1890's
 Ollinger, Mary - marriage record, 1880's
 Ollinger, Mathias - born 1853, lived in Polk, married Anna, 5 children from 1885 to 1904 - family group sheet
 Ollinger, Mathias - death certificate in Germany, 1830's
 Ollinger, Mathias - marriage record in Germany, 1860's
 Ollinger, Michael - born 1828, lived in West Bend, married Anna Maria 'Emma', 7 children from 1860 to 1876 - family group sheet
 Ollinger, Michael - born 1856, lived in West Bend, married Elizabeth, 5 children from 1893 to 1902 - family group sheet
 Ollinger, Nicholas - death certificate, 1900's
 Ollinger, Nicolas - death certificate in Germany, 1810's
 Ollinger, Nicolas - death certificate in Germany, 1820's
 Ollinger, Nicolas - death certificate in Germany, 1830's
 Ollinger, Nicolas - marriage record in Germany, 1860's
 Ollinger, Peter - born 1862, married Catherine, 2 children from 1901 to 1902 - family group sheet
 Ollinger, Peter J. - marriage record, 1900's
 Ollinger, Rosa Catharina - death certificate, 1880's
 Ollinger, Susanna - death certificate in Germany, 1820's

Olm
 Olm, Gottfried - married Johanna, 1 child born in 1892 - family group sheet
 Olm, Louisa - marriage record, 1890's
 Olm, Richard - marriage record, 1890's

Olp
 Olp, Carl - lived in Milwaukee, married Marie, 3 children from 1871 to 1877 - family group sheet
 Olp, Charles - marriage record, 1870's
 Olp, Gustav Albert - marriage record, 1900's
 Olp, Johann Friedrich - born 1807, lived in Milwaukee/Cooperstown, married Friederike Dorothea Charlotte, 9 children from 1833 to 1850 - family group sheet
 Olp, Julius Heinrich - marriage record, 1850's
 Olp, Ludwig Friedrich - marriage record, 1860's
 Olp, Mathilde Sophie - marriage record, 1860's

Olrogge
 Olrogge, Johann - lived in Milwaukee, married Friederike, 1 child born in 1887 - family group sheet

Olschefski
 Olschefski, Friedrich - born 1863, lived in Milwaukee, married Bertha, 4 children from 1887 to 1892 - family group sheet
 Olschefski, Friedrich - marriage record, 1880's

Olschewski
 Olschewski, Louise - marriage record, 1900's
 Olschewski, Wilhelm - lived in Milwaukee, married Auguste, 3 children from 1892 to 1896 - family group sheet

Olsen
 Olsen, Anders - born 1819, lived in Ashippun, married Karen, 8 children from 1841 to 1861 - family group sheet
 Olsen, Andreas - married Anna, 1 child born in 1863 - family group sheet
 Olsen, Anton - marriage record, 1880's
 Olsen, Ellev - born 1823, lived in Ashippun, married Kirstine, 2 children from 1853 to 1855 - family group sheet
 Olsen, Frederick - marriage record, 1870's
 Olsen, Hans - married Anna, 2 children from 1850 to 1853 - family group sheet
 Olsen, Hans - married Tone, 4 children from 1870 to 1881 - family group sheet
 Olsen, Louis - lived in Milwaukee, married Anna, 2 children from 1886 to 1888 - family group sheet
 Olsen, Mannas - born 1812, lived in Ashippun, married Marthe Kirstine, 4 children from 1838 to 1844 - family group sheet
 Olsen, Mary - marriage record, 1900's
 Olsen, Nils - born 1819, lived in Ashippun, married Karen, 5 children from 1850 to 1860 - family group sheet
 Olsen, Nils - married Marte, 1 child born in 1868 - family group sheet
 Olsen, Ole - married Andrea, 3 children from 1861 to 1867 - family group sheet
 Olsen, Ole - married Anne, 2 children from 1874 to 1874 - family group sheet
 Olsen, Ole - born 1819, lived in Hartford, married Anne, 8 children from 1848 to 1858 - family group sheet
 Olsen, Ole - married Anne, 1 child born in 1876 - family group sheet
 Olsen, Ole - married Ingeborg, 3 children from 1854 to 1857 - family group sheet
 Olsen, Ole - born 1810, lived in Ashippun, married Johanna, 2 children from 1846 to 1848 - family group sheet
 Olsen, Ole - married Mari, 1 child born in 1820 - family group sheet
 Olsen, Oscar J. - marriage record, 1900's
 Olsen, Simon - born 1818, lived in Ashippun, married 3 times - Anne Kirstine, Gunild, Maren, 7 children from 1846 to 1877 - family group sheet

Olsen/Olson
 Olsen/Olson, Anton - lived in Wayne, married Magdalena, 1 child born in 1882 - family group sheet

Olson
 Olson, Amelia - marriage record, 1900's
 Olson, Andrew - born 1807, lived in Ashippun, married Maren, 1 child born in 1851 - family group sheet
 Olson, Gilbert - marriage record, 1900's
 Olson, Halvor - born 1828, married twice - Anna Helvig, Helvik, 9 children from 1851 to 1878 - family group sheet
 Olson, Hans - born 1801, married Anna Kirstine, 4 children from 1829 to 1837 - family group sheet
 Olson, Hermann - lived in Milwaukee, married Emma Wilhelmine Maria Louise, 3 children from 1888 to 1890 - family group sheet
 Olson, Hermann - marriage record, 1880's
 Olson, Jens - born 1824, married Anne, 5 children from 1853 to 1865 - family group sheet
 Olson, Lena - marriage record, 1890's
 Olson, Nels - born 1854, married Pauline, 2 children from 1890 to 1896 - family group sheet
 Olson, Olof - married Ellen, 1 child born in 1847 - family group sheet
 Olson, Peter J. - born 1889, lived in Erin, married Katherine, 3 children from 1916 to 1916 - family group sheet
 Olson, Peter Olaf - born 1858, lived in West Bend, married Frances, 1 child born in 1894 - family group sheet
 Olson, Rollef - born 1797, lived in Ashippun, married Gurena, 3 children from 1851 to 1856 - family group sheet

Olszak
 Olszak, Anna - marriage record, 1890's
 Olszak, Ida - marriage record, 1900's
 Olszak, Joseph - marriage record, 1900's
 Olszak, Mary 'Mamie' - marriage record, 1890's
 Olszak, Michael - lived in Milwaukee, married Bertha, 6 children from 1874 to 1885 - family group sheet
 Olszak, Michael - death certificate, 1880's

Oltmann
 Oltmann, Claus Heinrich - married Katharina, 1 child born in 1868 - family group sheet

Olwell
 Olwell, Catherine - marriage record, 1890's

Olzsak
 Olzsak, Louis G. - death certificate, 1900's

O'Malley
 O'Malley, John - marriage record, 1880's

Omann
 Omann, Max - lived in Milwaukee, married Helena, 1 child born in 1903 - family group sheet

O'Mara
 O'Mara, Daniel - born 1780, married Name Unknown, 3 children from 1815 to 1827 - family group sheet
 O'Mara, James - marriage record, 1870's

O'Meara
 O'Meara, Atty John - born 1876, lived in West Bend, married Elizabeth, 1 zchild - family group sheet
 O'Meara, Bridget-Mrs. Patrick - death certificate, 1880's
 O'Meara, Frank Patrick - born 1882, lived in West Bend, married Susan Barbara, 3 children from 1913 to 1921 - family group sheet
 O'Meara, Judge Patrick - marriage record, 1870's
 O'Meara, Patrick - born 1799, married Bridget, 4 children from 1839 to 1848 - family group sheet
 O'Meara, Patrick - born 1845, lived in West Bend, married Louise, 10 children from 1875 to 1894 - family group sheet
 O'Meara, Patrick - death certificate, 1890's
 O'Meara, Patrick - marriage record, 1870's
 O'Meara, Thomas - born 1848, lived in Watertown, married Maria, 3 children from 1883 to 1887 - family group sheet
 O'Meara, Thomas Francis - born 1878, lived in West Bend, married Emma Augusta, 6 children from 1907 to 1919 - family group sheet
 O'Meara, Thomas Francis - marriage record, 1900's

Omit
 Omit, Nels Nielson - born 1803, lived in Ashippun/Scandinavia, married Sarah, 6 children from 1826 to 1846 - family group sheet

Onasch
 Onasch, Albert - lived in Milwaukee, married Elisabeth, 2 children from 1889 to 1893 - family group sheet
 Onasch, Clara - marriage record, 1900's
 Onasch, Otto R. - marriage record, 1900's

O'Neil
 O'Neil, A. F. - married Della, 1 child born in 1896 - family group sheet
 O'Neil, Ada Mary - marriage record, 1900's
 O'Neil, Alice Margaret - marriage record, 1890's
 O'Neil, Bridget-Mrs. William - death certificate, 1900's
 O'Neil, Catherine - marriage record, 1880's
 O'Neil, Daniel - born 1859, lived in Erin, married Anna, 2 children from 1901 to 1910 - family group sheet
 O'Neil, Daniel - born 1815, lived in Erin, married Margaret, 3 children from 1846 to 1849 - family group sheet
 O'Neil, Edward - born 1821, married Ellen, 8 children from 1861 to 1874 - family group sheet
 O'Neil, Edward - born 1825, lived in Fredonia, married Helen Elizabeth, 2 children from 1858 to 1862 - family group sheet
 O'Neil, Edward - death certificate, 1900's
 O'Neil, Elizabeth F. - marriage record, 1890's
 O'Neil, Ellen - marriage record, 1890's
 O'Neil, Eugene J. - marriage record, 1900's
 O'Neil, Eugene James - marriage record, 1900's
 O'Neil, Frank - born 1816, lived in Cedarburg, married Catherine, 10 children from 1849 to 1870 - family group sheet
 O'Neil, Genevieve Agnes - marriage record, 1890's
 O'Neil, James - death certificate, 1900's
 O'Neil, James - marriage record, 1850's
 O'Neil, James - marriage record, 1880's
 O'Neil, James - born 1828, lived in Cedarburg, married Sarah, 7 children from 1859 to 1869 - family group sheet
 O'Neil, John - born 1798, lived in Cedarburg, married Margaret, 5 children from 1825 to 1858 - family group sheet
 O'Neil, John - born 1842, lived in Milwaukee, married Mary E., 12 children from 1869 to 1885 - family group sheet
 O'Neil, John - death certificate, 1880's
 O'Neil, John - death certificate, 1900's
 O'Neil, Joseph - marriage record, 1890's
 O'Neil, Mary - marriage record, 1890's
 O'Neil, Mary - marriage record, 1900's
 O'Neil, Patrick - born 1821, lived in Wayne, married Mary, 6 children from 1845 to 1868 - family group sheet
 O'Neil, Patrick - born 1810, lived in Cedarburg, married Mary, 7 children from 1840 to 1854 - family group sheet
 O'Neil, Patrick William - lived in Iron Ridge, married Esther Ann, 1 child born in 1882 - family group sheet
 O'Neil, Patrick William - marriage record, 1880's
 O'Neil, Thomas - marriage record, 1890's
 O'Neil, William - married Bridget, 2 children from 1854 to 1854 - family group sheet

O'Neill
 O'Neill, Alice - marriage record, 1840's
 O'Neill, Annetta 'Etta' - marriage record, 1900's
 O'Neill, Charles - born 1825, lived in Erin, married Mary, 3 children from 1855 to 1858 - family group sheet
 O'Neill, Charles - born 1846, lived in Erin, married Mary Johanna, 4 children from 1878 to 1887 - family group sheet
 O'Neill, Charles - born 1815, lived in Erin, married Mary, 9 children from 1836 to 1859 - family group sheet
 O'Neill, Charles - death certificate, 1900's
 O'Neill, Charles Francis - born 1864, lived in Erin, married Sarah Anna, 2 children from 1905 to 1907 - family group sheet
 O'Neill, Clara Agnes-Mrs. Edward - death certificate, 1890's
 O'Neill, David - married Johanna, 3 children from 1875 to 1881 - family group sheet
 O'Neill, Edward - born 1867, lived in Erin, married Catherine Marcella, 5 children from 1903 to 1915 - family group sheet
 O'Neill, Edward - born 1820, lived in Milwaukee, married Clara Agnes 'Clarissa', 1 child born in 1848 - family group sheet
 O'Neill, Edward - born 1848, lived in Erin, married Maria, 2 children from 1881 to 1883 - family group sheet
 O'Neill, Edward - death certificate, 1890's
 O'Neill, Edward - death certificate, 1900's
 O'Neill, Felix - born 1838, lived in Merton/Anson/Sigel/Mukilteo, married Ellen, 10 children from 1863 to 1889 - family group sheet
 O'Neill, Henry - born 1817, lived in Lisbon, married Margaret, 10 children from 1848 to 1865 - family group sheet
 O'Neill, James - born 1838, lived in Erin, married Mary, 9 children from 1864 to 1879 - family group sheet
 O'Neill, James Patrick - born 1865, lived in Erin, married Mary Ann, 7 children from 1902 to 1913 - family group sheet
 O'Neill, John - born 1836, lived in Erin, married Ellen, 8 children from 1864 to 1878 - family group sheet
 O'Neill, John - born 1810, lived in Polk, married Johanna, 2 children from 1837 to 1846 - family group sheet
 O'Neill, John Joseph - born 1867, lived in Erin, married Margaret Johanna, 1 child born in 1910 - family group sheet
 O'Neill, Lawrence - born 1778, lived in Polk, married Margaret, 6 children from 1809 to 1824 - family group sheet
 O'Neill, Lottie - marriage record, 1900's
 O'Neill, Maria - marriage record, 1890's
 O'Neill, Mary A. - marriage record, 1890's
 O'Neill, Mary E. - marriage record, 1900's
 O'Neill, Susan - marriage record, 1890's
 O'Neill, Thomas - born 1864, lived in Hartford, married Catherine Ann, 2 children from 1902 to 1903 - family group sheet
 O'Neill, Thomas - born 1845, lived in Monches/Erin, married Mary, 6 children from 1866 to 1876 - family group sheet
 O'Neill, Thomas - marriage record, 1900's
 O'Neill, Thomas J. - born 1869, lived in Milwaukee, married Anna M., 1 child born in 1895 - family group sheet
 O'Neill, William - born 1810, lived in Erin, married Mary, 4 children from 1845 to 1852 - family group sheet
 O'Neill, William - marriage record, 1890's
 O'Neill, William E. - born 1875, lived in Milwaukee, married Theresa 'Bessie', 5 children from 1903 to 1916 - family group sheet

Opahle
 Opahle, Bernard - born 1849, lived in Milwaukee, married Catherine, 2 children from 1879 to 1880 - family group sheet
 Opahle, Bernard - marriage record, 1870's

Opelt
 Opelt, Max Franz - marriage record, 1890's

Opfergeld
 Opfergeld, Franz Heinrich - lived in Trenton, married Johanna 'Jane', 2 children from 1878 to 1885 - family group sheet
 Opfergeld, Franz Heinrich - marriage record, 1870's

Opgenorth
 Opgenorth, Albert - born 1879, lived in Kewaskum, married Margaret, 9 children from 1907 to 1922 - family group sheet
 Opgenorth, Albert - marriage record, 1900's
 Opgenorth, Henry - born 1855, married twice - Maria Emilia Hermina, Martha, 6 children from 1893 to 1900 - family group sheet
 Opgenorth, Herman - born 1847, married Mary Anna, 6 children from 1877 to 1887 - family group sheet
 Opgenorth, John - born 1858, married Maryanna, 8 children from 1884 to 1899 - family group sheet
 Opgenorth, Joseph Herman - born 1885, lived in Kewaskum, married Adelaide Eva, 3 children from 1912 to 1920 - family group sheet
 Opgenorth, Maria Alwine - marriage record, 1870's
 Opgenorth, Maria Emilia-Mrs. Henry - death certificate, 1900's
 Opgenorth, Petronella 'Nellie' - death certificate, 1890's
 Opgenorth, Theodor - married Johanna, 4 children from 1862 to 1874 - family group sheet
 Opgenorth, Theodore - born 1812, married Petronella, 5 children from 1847 to 1858 - family group sheet

Opitz
 Opitz, Albert - born 1824, lived in Berlin, married Sophie, 1 child born in 1872 - family group sheet
 Opitz, Arthur - marriage record, 1890's
 Opitz, Charles - born 1873, married Julia, 1 child born in 1911 - family group sheet
 Opitz, Charlotte 'Lottie' - marriage record, 1900's
 Opitz, Ernst - born 1840, lived in Milwaukee, married Dorothea, 7 children from 1869 to 1884 - family group sheet
 Opitz, Ernst - death certificate, 1880's
 Opitz, Ernst - death certificate, 1900's
 Opitz, Frank - born 1875, married Clara Louise Amalie, 3 children from 1905 to 1905 - family group sheet
 Opitz, Frank - born 1855, lived in Saukville, married Elizabeth, 2 children from 1885 to 1889 - family group sheet
 Opitz, Friederike - marriage record, 1830's
 Opitz, Henry Paul - marriage record, 1890's
 Opitz, Herman - born 1839, lived in Saukville, married Paulina, 9 children from 1868 to 1893 - family group sheet
 Opitz, Johann Gottlob - born 1784, lived in Mequon, married Mrs., 2 children from 1819 to 1816 - family group sheet
 Opitz, Karl Ehregott - marriage record, 1860's
 Opitz, Karl Ehregott - married Selma, 1 child born in 1868 - family group sheet
 Opitz, Richard - born 1850, lived in Mequon, married Margaret, 1 child born in 1885 - family group sheet
 Opitz, Rudolph - married Ida, 1 child born in 1889 - family group sheet
 Opitz, Wilhelm F. - born 1816, lived in Mequon/Grafton, married Wilhelmina, 7 children from 1839 to 1855 - family group sheet
 Opitz, Wilhelmine 'Minnie' - marriage record, 1890's

Opiz
 Opiz, Ignatius - married Maria, 1 child born in 1855 - family group sheet

Oppel
 Oppel, Johann Michael - born 1832, lived in Milwaukee/Mequon, married twice - Elisabeth Margaretha, Margaretha Ursula, 5 children from 1857 to 1884 - family group sheet
 Oppel, Johann Michael - marriage record, 1850's
 Oppel, Johann Michael - marriage record, 1870's
 Oppel, John Michael - marriage record, 1870's
 Oppel, Paul Andreas - born 1874, lived in Milwaukee, married Louise Emma Sophie, 2 children from 1911 to 1911 - family group sheet

Opper
 Opper, Henry - born 1868, lived in Auburn, married Christina T., 7 children from 1896 to 1915 - family group sheet
 Opper, Katherine 'Kate' - marriage record, 1870's
 Opper, Peter - marriage record, 1880's

Opperman
 Opperman, Amelia - marriage record, 1880's
 Opperman, August - born 1828, lived in Auburn, married Emilie M., 14 children from 1860 to 1887 - family group sheet
 Opperman, C. H. - born 1827, lived in Winchester, married Amalia, 5 children from 1854 to 1860 - family group sheet
 Opperman, Maria C. - marriage record, 1890's
 Opperman, Paul William - marriage record, 1880's
 Opperman, Paul William - born 1866, lived in Fresno/Milwaukee, married Wilhelmine 'Minnie', 6 children from 1890 to 1906 - family group sheet
 Opperman, William C. - marriage record, 1880's

Oppermann
 Oppermann, Augusta - marriage record, 1890's
 Oppermann, Barbara - marriage record, 1880's
 Oppermann, Catherine - marriage record, 1870's
 Oppermann, Frank - marriage record, 1890's
 Oppermann, Frederick - born 1865, lived in Polk, married Maria, 3 children from 1892 to 1900 - family group sheet
 Oppermann, Frederick - born 1824, lived in Polk, married Mary Elisabeth, 4 children from 1859 to 1873 - family group sheet
 Oppermann, Frederick - death certificate, 1890's
 Oppermann, Frederick - marriage record, 1850's
 Oppermann, Frederick - marriage record, 1880's
 Oppermann, Friedrich - married Wilhelmina, 2 children from 1859 to 1860 - family group sheet
 Oppermann, H. - married A., 1 child born in 1855 - family group sheet
 Oppermann, Henry - born 1864, lived in Milwaukee/Saukville, married Emelie, 11 children from 1887 to 1909 - family group sheet
 Oppermann, Henry - born 1873, lived in Polk, married Emma, 1 child born in 1902 - family group sheet
 Oppermann, Henry - marriage record, 1880's
 Oppermann, Henry Samuel - born 1883, lived in Auburn, married Ida Emma Emilie, 4 children from 1911 to 1918 - family group sheet
 Oppermann, John Frederick - born 1871, lived in Auburn, married Emilie Caroline Wilhelmina, 12 children from 1899 to 1922 - family group sheet
 Oppermann, Margaretha - marriage record, 1870's

Opperschall
 Opperschall, Joseph - marriage record, 1900's

Oppliger
 Oppliger, Friedrich - born 1875, lived in Lomira, married Emma Caroline, 2 children from 1900 to 1906 - family group sheet

Oppmann
 Oppmann, Mathias - marriage record, 1880's

Oprecht
 Oprecht, Regula - marriage record, 1900's

Oprina
 Oprina, Anton - married Julia, 1 child born in 1877 - family group sheet