Residents of Pictou, Town—Ville — Sub-district F, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
|---|
| 7 | obrien | alex | M | 30 | Methodist | Irish | Nova Scotia | Ships Masters and captains (Sea or Inland Waterways) | 238 |
| 19 | obrien | annie | F | 43 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 34 |
| 22 | obrien | catherine | F | 25 | Roman Catholic | Scottish | Nova Scotia | No Occupation Listed | 222 |
| 25 | obrien | daniel | M | 3 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 222 |
| 8 | obrien | emily | F | 18 | Methodist | Scottish | Nova Scotia | No Occupation Listed | 238 |
| 21 | obrien | john | M | 35 | Roman Catholic | Irish | Newfoundland | Fishermen | 222 |
| 24 | obrien | john | M | 5 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 222 |
| 23 | obrien | peter | M | 8 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 222 |
| 18 | obrien | william | M | 48 | Roman Catholic | Irish | Nova Scotia | Messengers | 34 |
| 25 | oliver | margaret | F | 25 | Presbyterian | Scottish | Nova Scotia | No Occupation Listed | 208 |
| 24 | oliver | robert | M | 31 | Presbyterian | Scottish | Nova Scotia | Dealer, merchant etc. (Wholesale & retail trade) | 208 |
| 19 | omally | james | M | 30 | Roman Catholic | Irish | Nova Scotia | Stewards | 473 |
| 16 | oniel | daniel | M | 40 | Roman Catholic | Irish | Nova Scotia | Ships Masters and captains (Sea or Inland Waterways) | 623 |
| 17 | oniel | kate | F | 36 | Roman Catholic | Scottish | Nova Scotia | No Occupation Listed | 623 |
| 18 | oniel | thomas | M | 10 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 623 |
| 16 | orafferty | catherine | F | 42 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 170 |
| 17 | orafferty | daniel | M | 20 | Roman Catholic | Irish | Nova Scotia | Messengers | 170 |
| 19 | orafferty | elizabeth | F | 15 | Roman Catholic | Irish | Nova Scotia | Seamstress | 170 |
| 20 | orafferty | ellen | F | 13 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 170 |
| 15 | orafferty | james | M | 44 | Roman Catholic | Irish | New Brunswick | Tanners nfs | 170 |
| 18 | orafferty | margaret | F | 15 | Roman Catholic | Irish | Nova Scotia | Seamstress | 170 |
| 9 | osborne | alex | M | 40 | Presbyterian | Scottish | New Brunswick | Manufacturers and sales agents | 608 |
| 10 | osborne | bessie | F | 30 | Presbyterian | Scottish | Nova Scotia | No Occupation Listed | 608 |
| 8 | oshea | george | M | 21 | Roman Catholic | Irish | Nova Scotia | Seamen | 89 |
| 6 | oshea | james | M | 33 | Roman Catholic | Irish | Nova Scotia | Delivery men and drivers of goods | 89 |
| 9 | oshea | john | M | 19 | Roman Catholic | Irish | Nova Scotia | Seamen | 89 |
| 7 | oshea | patrick | M | 25 | Roman Catholic | Irish | Nova Scotia | Seamen | 89 |
| 5 | oshea | rosey | F | 54 | Roman Catholic | Irish | Ireland | No Occupation Listed | 89 |
| 11 | oshea | sarah | F | 14 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 89 |
| 10 | oshea | thomas | M | 15 | Roman Catholic | Irish | Nova Scotia | Messengers | 89 |
| 10 | otoole | john | M | 4 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 617 |
| 7 | otoole | mary | F | 5 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 669 |
| 11 | otoole | thomas | M | 2 | Roman Catholic | Irish | Nova Scotia | No Occupation Listed | 617 |