Mary O'Brien worked as “Clerk” in 1910 (industry “Dept Store”). She lived at 14 York St in Cortland in 1910. She shared a census household with John L Hinnond in 1910.
Census sources: 1910 census, 1910: John L Hinnond
| Born | About 1877 |
|---|---|
| Race | White |
| Sex | Female |
| Person ID | 6035 |