- Olmstead (cont.)
-
Winnie M. B: 1886, D: 1890
- Olney
-
Joanna B: circa 1780, D: 1803
- Olsen
-
Karen Elizabeth (Mrs.) (née Cantrall) B: 1942, D: 1974Theresa Lyn B: 1964, D: 1974Wes B: 1986, D: 2017Wesley Warren B: 1986, D: 2017
- Olson
-
Alda B: 1897Aldeth B: 1897Anna Marie B: 1912Gladys Elizabeth B: 1899, D: 1995Lillie B: 1893, D: 1986Myrtle Yvonne (Mrs.) (née Gesellchen) B: 1924, D: 2016Warren W. B: 1921, D: 1999
- Onderdonk
-
Mary (Mrs.) B: 1833
- Ondler
-
Opal Lucile (Mrs.) (née Trout) B: 1920Rodney Ralph B: 1918
- Ooley
-
Clayton E. B: 1926Dorothy A. (Mrs.) (née Mitts) B: 1929, D: 2004
- Oosterhoudt
-
Annetje (Mrs.) (née Van Etten) B: 1695, D: 1765Jan Theunis B: 1694, D: 1746
- Oosterhout
-
Anna Elizabeth B: 1865, D: 1952Lawrence Hendrick B: 1836, D: 1922Sarah Margaret (Mrs.) (née Wynkoop) B: 1839, D: 1924Teunis B: 1743, D: circa 1794
- Oostrander
-
Markytje (Mrs.) (née de Hooges) B: 1688
- Openshaw
- Opland
-
Albine Josefa B: 1885, D: 1972
- Orb
-
Ruby (Mrs.) (née Alexander) B: 1901, D: 1991Rush B: 1881, D: 1969
- Ord
- Orender
-
Charles L. B: 1894David W. B: 1898Earl Baines B: 1914, D: 1996John B: 1896Leonard Arthur B: 1885, D: 1954Mary Ann B: 1889Nina E. B: 1890Oma (Mrs.) (née Buchanan) B: 1896Rebecca Jane B: 1886Virgie B: 1894Virginia A. B: 1894William T. B: 1885