Residents of Esquesing — Sub-district G, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 16 | oconnell | ann | F | 40 | Roman Catholic | Irish | Ontario | No Occupation Listed | 423 |
| 19 | odonnell | james | M | 30 | Roman Catholic | Irish | New Brunswick | Stone carvers or cutters and stone yard workers | 263 |
| 19 | oneil | catherine | F | 26 | Roman Catholic | Irish | United States | No Occupation Listed | 307 |
| 10 | oneil | charlotte | F | 2 | Congregationalist | Irish | Ontario | No Occupation Listed | 2 |
| 9 | oneil | frederick | M | 3 | Congregationalist | Irish | Ontario | No Occupation Listed | 2 |
| 7 | oneil | james | M | 28 | Congregationalist | Irish | Ireland | Labourers nfs | 2 |
| 18 | oneil | james | M | 27 | Roman Catholic | Irish | Ireland | Labourers nfs | 307 |
| 20 | oneil | james | M | 4 | Roman Catholic | Irish | Ontario | No Occupation Listed | 307 |
| 8 | oneil | lucinda | F | 26 | Congregationalist | Scottish | Ontario | No Occupation Listed | 2 |
| 21 | oneil | maryann | F | 2 | Roman Catholic | Irish | Ontario | No Occupation Listed | 307 |
| 20 | orr | david | M | 17 | Methodist | Irish | Ontario | No Occupation Listed | 115 |
| 19 | orr | ephraim | M | 20 | Methodist | Irish | Ontario | No Occupation Listed | 115 |
| 21 | orr | florence | F | 15 | Methodist | Irish | Ontario | No Occupation Listed | 115 |
| 23 | orr | jane | F | 10 | Methodist | Irish | Ontario | No Occupation Listed | 115 |
| 16 | orr | john | M | 51 | Methodist | Irish | Ontario | Farmers, general and nfs | 115 |
| 18 | orr | john | M | 24 | Methodist | Irish | Ontario | Farmers, general and nfs | 115 |
| 17 | orr | maryann | F | 48 | Methodist | Irish | Ireland | No Occupation Listed | 115 |
| 22 | orr | wellington | M | 13 | Methodist | Irish | Ontario | No Occupation Listed | 115 |
| 24 | orr | wesley | M | 8 | Methodist | Irish | Ontario | No Occupation Listed | 115 |
| 5 | osborne | agnes | F | 32 | Anglican | English | England | No Occupation Listed | 303 |
| 4 | osborne | henry | M | 30 | Anglican | English | England | Labourers nfs | 303 |
| 23 | osborne | john | M | 40 | Presbyterian | Irish | Ireland | Mason nfs or combined | 332 |
| 1 | osborne | john | M | 3 | Presbyterian | Irish | Ontario | No Occupation Listed | 332 |
| 24 | osborne | margaret | F | 36 | Presbyterian | Irish | Ontario | No Occupation Listed | 332 |
| 1 | owens | albert | M | 38 | Methodist | English | Ontario | Farmers, general and nfs | 21 |
| 8 | owens | anna | F | 46 | Episcopal Methodist | English | Ontario | No Occupation Listed | 334 |
| 12 | owens | danl | M | 52 | Episcopal Methodist | Irish | Ontario | Labourers nfs | 334 |
| 3 | owens | ernest | M | 11 | Methodist | English | Ontario | No Occupation Listed | 21 |
| 4 | owens | gerty | F | 9 | Methodist | English | Ontario | No Occupation Listed | 21 |
| 9 | owens | hester | F | 24 | Episcopal Methodist | Irish | Ontario | No Occupation Listed | 334 |
| 7 | owens | james | M | 46 | Episcopal Methodist | Irish | Ontario | Farmers, general and nfs | 334 |
| 10 | owens | james | M | 22 | Episcopal Methodist | Irish | Ontario | Farmers, general and nfs | 334 |
| 2 | owens | jennie | F | 45 | Methodist | Irish | Ontario | No Occupation Listed | 21 |