Pine Ridge Cemetery, last names beginning with O:
| Other last names: | A | B | C | D | E | F | G | H | I-J | K | L | M | N | P | Q-R | S | T | U-V | W | XYZ |
| Name | Birth | Death | Section | Location | Inscription | Notes | |
| Caroline Friend Oakey | 3/11/1875 | 3/31/1934 | H | 7- | Lot sale 1934, $80, Deed #318, 5 graves, PC paid 1945, $175 | ||
| Caroline Oakey | see Hopkins | 1911 | 1998 | H | 7- | ||
| Washington Joseph Oakey, DDS | 2/22/1872 | 4/12/1946 | H | 7- | Book #1 | ||
| Joseph Oaks | K | 13- | No stone. Map | ||||
| Kathryn Ober | see Peightal | 1927 | P | 119- | |||
| ? O'Brian | S | 124- | No gravestone | ||||
| Elizabeth Davis O'Brian | 1882 | 1960 | W | 16- | |||
| Elizabeth O'Brien | see Patnode | St B | |||||
| Margaret O'Brien | see King | 1909 | St B | ||||
| Mattie O'Brien | 1873 | 1960 | 5-6 | Keough plaque | |||
| B. Ochtman | Q | 64- | No gravestone | ||||
| Ella F. Hopkins O'Connell | 1904 | 1986 | R | 103- | |||
| Hubert Cogan O'Connell | see Smith | 1903 | 1978 | R | 103- | $90, 3 graves South end, PC paid 1969, $200 | |
| John O'Connell | 5/30/1906 Age 41 years | St B | |||||
| Ann C. O'Connor | 1878 | 1962 | L | 106- | |||
| James G. O'Connor | 1/15/1902 | 11/15/1971 | L | 106- | N.Y. Pvt. U.S. Army WW I (veteran) | ||
| Mary E. Dyer O'Connor | 1893 | 1922 | A | 7- | Book #1, Lot sale 1922, Grave #1 South end, TB patient | ||
| Mildred O'Connor | 1905 | 1968 | L | 106- | |||
| Patrick (BR) O'Connor | 1922 | A | 7- | Grave #2 South end | |||
| William B. O'Connor | 10/9/1907 | 10/12/1966 | L | 106- | N.Y. Pfc. SVC Como Unit WW II (veteran) | ||
| Annie Oddy | 1885 | 1967 | H | 9- | |||
| Nathaniel Oddy | 1870 | 1944 | H | 9- | Grave #2 North | ||
| Glenn D. Odone | 1944 | 4/30/2003 | R | 21- | 2 graves, given for surveying work | ||
| Carol Oehlbeck | P | 327- | Lot sale 1996, 2 graves $600 incl. PM | ||||
| Josie O'Grady | 1876 | 1918 | Z | 13- | Book #2, Lot sale 1918, Grave #2 North end, TB patient | ||
| Mary Ohmann | 4/6/1935 | 12/21/2012 | P | 228- | |||
| Robert Ohmann | P | 228- | Lot sale 1997, 1 grave $300 incl. PM | ||||
| Benjamin Olden | 1892 | 1963 | P | 141- | |||
| Clara Oldfield | see Huntington | 1895 | 1981 | F | 13- | ||
| Lizzie A. Oldfield | 1865 | 1918 (Moody B.R.) | L | 130- | Wife of W.H. Oldfield | Book #2, | |
| William H. Oldfield | 1859 | 1930 0r 1936 | L | 130- | Book #2 | ||
| Alexander H. Olesen | 1902 | 1965 | L | 39- | Fortune plaque, Lot sale 1965, $30, 1 grave | ||
| Paul Oliva | 4/4/1888 | 2/5/1968 | St B | N.Y. Cpl. U.S. Army WW I (veteran) | |||
| Birger Olsen | 1903 | 1942 | P | 103- | Norwegian Seaman | ||
| Charles G. Olyer | 1904 | 1939 (BR) | W | 29- | No stone. Book #5, Lot sale 1959, $30, 1 grave | ||
| Gerald J. Olyer | 5/24/1906 | 7/18/1958 | W | 29- | N.Y.C. 5 2525 Soc. Comd. Unit WW II (veteran) | ||
| Mabel Olyer | see Guilford | 1966 (BR) | J | 84- | |||
| Richard P. Olyer | 5/24/1895 | 10/31/1924 | J | 84- | Co. A. 2nd Pioneer Inf. (veteran) | ||
| Ross R. Olyer | 1884 | 1940 | J | 84- | 2 graves,"PC paid 1986, $175 | ||
| Ruth D. O'Neall | 1913 | 1945 | P | 104- | |||
| C. J. (Charles James) O'Neil | 1891 | 1920 (BR) | Z | 21- | No stone. Book #2, Lot sale 1920, Grave #1 North end, TB patient, from Ireland | ||
| Cornealius O'Neil | 1853 | 1924 | U | 10- | Book #2, Lot sale 1924, Grave #3 North end | ||
| Jeremiah O'Neil | 1855 | 1939 | U | 10- | Book #5 | ||
| Michael O'Neil | 1850 | 1934 | U | 10- | |||
| John C. O'Neill | 12/14/1891 | 5/10/1914 | R | 1- | Mass. Cpl. Co. D. 1 Engineers WW I (veteran) | ||
| Kate O'Neill | nd | nd | St B | ||||
| Margaret M. O'Neill | 5/26/1897 | 10/25/1969 | R | 1- | |||
| Mrs. Timothy O'Neill | 3/23/1911 Age 89 years | St B | May her soul rest in peace. | ||||
| Edward Blackney O'Reilly | 1908 | 1945 | O | 316- | Grave # 3 North | ||
| Edward S. O'Reilly | 8/15/1880 | 12/8/1946 | F | 13- | Graves ! & 2 North end, PCpaid 1945, $100 | ||
| Sophie O'Reilly | 1880 | 1946 (BR) | F | 13- | |||
| Earl Elsworth Ormsby | 11/17/1889 | 5/1/1915 | J | 52- | |||
| Emily Ormsby | see Paye | 1883 | 1911 | K | 38- | ||
| George Ormsby | 1929 (BR) | OO | No stone. Book #4 | ||||
| Hattie M. Ormsby | 1866 | 10/17/1898 Age 32 years | L | 11- | |||
| Joseph Ormsby | 2/25/1830 | M | 47- | ||||
| Louisa Cumings Ormsby | 1/11/1828 | M | 47- | His wife (Joseph's) | |||
| Nattica infant Osono | 1918 | 1918 | Z | 13- | |||
| Sakichi Osono | 1892 | 1918 | Z | 13- | Book #2, Lot sale 1918, Grave #1 South end, TB patient | ||
| Charles Otis | 1876 | 1973 | St B | ||||
| M. Etta Otis | see Vosburgh | 1871 | 1963 | J | 55- | ||
| Mary E. Otis | 1/13/1986 Age 19 years, 4 months | St B | Daughter of George and Catherine Otis | ||||
| Mary Ethel Otis | 1888 | 1915 | St B | Wife of E.J. Otis | |||
| Mary J. Otis | see Greene | 1867 | 1928 | K | 42- | ||
| Mildred C. Otis | 11/9/1907 | 3/8/1908 | St B | Infant daughter of Matthew C. and Florence M. Otis | |||
| Rena Otis | 1881 | 1964 | K | 8- | (In Patnode plot) now on Swanson | ||
| infant Oudweth | 1929 (BR) | OO | No stone. Book #4 | ||||
| Rock Ouellette | 1909 | 1964 | J | 52- | cremains, PM not paid | ||
| Rose C. Ouellette | 1901 | 1964 | J | 52- | |||
| Evelyn Ecke Outcalt | 1918 | P | 328- | ||||
| George V. Outcalt | 7/3/1914 | 5/1/1995 | P | 328- | Lot sale 1995, 2 graves $600 incl. PM | ||
| Harold R. Outcalt | 1883 | 1965 | P | 217- | Lot sale 1965, $60, 2 graves, PC paid 1965 $200 | ||
| Hilda M. Outcalt | 1889 | 1969 | P | 217- | |||
| Isia E. Owen | see Morhous | 1867 | L | 114- | |||
| George T. Owens | 1892 | 1973 | O | 321- | |||
| Marjorie L. Owens | 1894 | 1945 | O | 321- | His wife (George T.'s) | Book #5 | |
| Mary Hickey Owens | 6/7/1904 | 3/10/1996 | O | 321- |
Note: BR means that the information comes from the Burial Record, and CR means Cemetery Record; these codes indicate that there is no stone.
