Residents of Hawkesbury, Village — Sub-district C, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 21 | obare | malquise | M | 18 | Roman Catholic | French | Quebec | Painters, nfs | 258 |
| 1 | omahoney | beatrice | F | 56 | Roman Catholic | Irish | Quebec | No Occupation Listed | 294 |
| 25 | omahoney | cain | M | 61 | Roman Catholic | Irish | Ireland | Gardeners nfs | 294 |
| 4 | omahoney | ellen | F | 28 | Roman Catholic | Irish | Ontario | No Occupation Listed | 162 |
| 5 | omahoney | mary | F | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 162 |
| 20 | omally | ann | F | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 118 |
| 17 | omally | celine | F | 40 | Roman Catholic | Irish | Ireland | No Occupation Listed | 118 |
| 18 | omally | james | M | 21 | Roman Catholic | Irish | Ontario | river drivers | 118 |
| 21 | omally | kate | F | 13 | Roman Catholic | Irish | Ontario | No Occupation Listed | 118 |
| 19 | omally | mary | F | 17 | Roman Catholic | Irish | Ontario | Tailors and tailoresses | 118 |
| 22 | omally | sarah | F | 11 | Roman Catholic | Irish | Ontario | No Occupation Listed | 118 |
| 16 | omally | thomas | M | 40 | Roman Catholic | Irish | Ireland | Factory labourers (non-specified manufacturing) | 118 |
| 8 | omohony | john | M | 29 | Roman Catholic | Irish | Quebec | Gardeners nfs | 138 |
| 9 | omohony | maria | F | 28 | Roman Catholic | Irish | Quebec | No Occupation Listed | 138 |
| 3 | oneil | ann | F | 39 | Roman Catholic | Irish | Ontario | No Occupation Listed | 81 |
| 2 | oneil | arthur | M | 58 | Roman Catholic | Irish | Ireland | Factory labourers (non-specified manufacturing) | 81 |
| 5 | oneil | arthur | M | 22 | Roman Catholic | Irish | Ontario | Labourers nfs | 81 |
| 8 | oneil | charlotte | F | 12 | Roman Catholic | Irish | Ontario | Labourers nfs | 81 |
| 7 | oneil | maggie | F | 14 | Roman Catholic | Irish | Ontario | Labourers nfs | 81 |
| 6 | oneil | maria | F | 17 | Roman Catholic | Irish | Ontario | Labourers nfs | 81 |
| 4 | oneil | robert | M | 24 | Roman Catholic | Irish | Ontario | Labourers nfs | 81 |
| 22 | owens | james | M | 58 | Roman Catholic | Irish | Ireland | Carpenters | 162 |
| 24 | owens | james | M | 32 | Roman Catholic | Irish | Ontario | Factory labourers (non-specified manufacturing) | 162 |
| 1 | owens | john | M | 26 | Roman Catholic | Irish | Ontario | Factory labourers (non-specified manufacturing) | 162 |
| 25 | owens | joseph | M | 30 | Roman Catholic | Irish | Ontario | Factory labourers (non-specified manufacturing) | 162 |
| 23 | owens | mary | F | 57 | Roman Catholic | Irish | Ireland | No Occupation Listed | 162 |
| 3 | owens | mary | F | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 162 |
| 2 | owens | richard | M | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 162 |