| OBERLIN | Catherine | dropsy, w/o , arranged by Mrs. Otto Davis and Mrs. James Croasmun, d. at home of Mrs. Davis | 21 May. 1913 | 90y 3m 5d | Circle Hill | Punxsutawney | ||
| O'BREIN | c/o James | 25 Mar. 1902 | 5m | Anita | Catholic | Anita | ||
| OBRIAN | Andrew | James | 1 Feb. 1915 | 1d | Rossiter | Union Church | Rossiter | |
| OBRYAN | Katherine | paralysis, w/o, | 20 Jul. 1914 | 66t 2m 19d | Anita | R C Cemetery | Reynoldsville | |
| OCONNOR | Nelson | P. | d. Punsxy Hosp. Teamster, married. Arr. By wife's secured soldier fund. | 16 Mar. 1911 | 76y 5m 26d | Brookville | ||
| OLEAR | Annie | w/o | 8 Dec. 1911 | 48y | Walston | R C Cemetery | Punxsutawney | |
| OLENIK | Anna | w/o, d. Adrian Hosp. | 12 Sep. 1910 | 33y 8m 29d | R C Cemetery | Punxsutawney | ||
| OLVARI | Mrs. Antoni, pneumonia, d. Adrian Hosp | 30 Jan. 1919 | 27y | Dayton | R C Cemetery | Punxsutawney | ||
| OLWILLER | Catherine | b. Indiana Co., d/o Michael & Mary Mixel Fetterman, both b. PA | 17 Jul. 1910 | 93y 3m 12d | Punxsutawney | Marion Center | Marion Center | |
| ORFEN | Hellin | 28 Jun. 1916 | 3y 5m 5d | Adrian | R C Cemetery | Anita | ||
| OROS | John | killed on RR near Juneau Sta. | 9 Apr. 1907 | 45y | Steffy Cemetery | |||
| OSAK | Stephen | scalds on body, shock, s/o Mike & Josaphine Tutro Osak, both b. Poland | 13 Jul. 1908 | 1y 9m 8d | Rossiter | Anita R C | Anita | |
| OSWOLD | Alford | Sylvester | bright's disease, salesman | 9 Feb. 1915 | 64y 11m 11d | Punxsutawney | Circle Hill | Punxsutawney |
| OWENS | Frank | 16 Jul. 1900 | 6y | Anita | K of P | Anita |
Jefferson County, PA