Residents of Rockwood — Sub-district D, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
|---|---|---|---|---|---|---|---|---|---|
| 1 | olmsted | william | M | 45 | Baptist | Blank | Ontario | Labourers nfs | 191 |
| 12 | oneil | alice | F | 54 | Wesleyan Methodist | Irish | Ireland | No Occupation Listed | 85 |
| 11 | oneil | samuel | M | 50 | Presbyterian | Irish | Ireland | Farmers, general and nfs | 85 |