| 3 | oboe | emily | F | 35 | Anglican | English | England | Housekeeper nfs | 263 |
| 14 | obrien | bridget | F | 60 | Roman Catholic | Irish | Ireland | No Occupation Listed | 11 |
| 13 | obrien | edward | M | 54 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 11 |
| 18 | obrien | emma | F | 21 | Episcopal | Irish | Ontario | No Occupation Listed | 186 |
| 17 | obrien | mary | F | 60 | Episcopal | Irish | Ireland | No Occupation Listed | 186 |
| 19 | ocomin | bridget | F | 60 | Roman Catholic | Irish | Ireland | No Occupation Listed | 115 |
| 3 | oconnell | annie | F | 18 | Roman Catholic | Irish | Ontario | Dressmakers | 400 |
| 4 | oconnell | christopher | M | 16 | Roman Catholic | Irish | Ontario | Porters | 400 |
| 2 | oconnell | david | M | 21 | Roman Catholic | Irish | Ontario | Railway breakmen | 400 |
| 6 | oconnell | elizabeth | F | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 400 |
| 1 | oconnell | ellen | F | 48 | Roman Catholic | Irish | Quebec | No Occupation Listed | 400 |
| 7 | oconnell | john | M | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 400 |
| 5 | oconnell | patrick | M | 14 | Roman Catholic | Irish | Ontario | Painters, nfs | 400 |
| 13 | oconner | ann | F | 25 | Presbyterian | Scottish | Scotland | No Occupation Listed | 36 |
| 11 | oconner | margaret | F | 50 | Roman Catholic | Irish | Ireland | No Occupation Listed | 36 |
| 12 | oconner | thomas | M | 25 | Roman Catholic | Irish | Ontario | Plasterers | 36 |
| 5 | oconnor | ann | F | 18 | Roman Catholic | Irish | Ontario | Servants nfs | 265 |
| 9 | oconnor | charles | M | 17 | Roman Catholic | Irish | Ontario | Servants nfs | 310 |
| 21 | oconnor | ellen | F | 27 | Roman Catholic | Irish | Ontario | Servants nfs | 523 |
| 14 | oconnor | john | M | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 36 |
| 3 | oconnor | richard | M | 43 | Roman Catholic | Irish | Ireland | Ministers of Religion | 160 |
| 11 | ocraft | harlin | M | 67 | Anglican | English | England | No Occupation Listed | 50 |
| 13 | ocraft | joseph | M | 31 | Anglican | English | Ontario | Teamsters (inc. mine driver, etc.) | 50 |
| 12 | ocraft | rebecca | F | 60 | Anglican | English | England | No Occupation Listed | 50 |
| 17 | odam | anne | F | 22 | Anglican | Irish | Ontario | No Occupation Listed | 513 |
| 16 | odam | william | M | 24 | Anglican | English | England | Stone carvers or cutters and stone yard workers | 513 |
| 18 | odam | william | M | 0 | Anglican | English | Ontario | No Occupation Listed | 513 |
| 7 | odell | samuel | M | 50 | Anglican | English | England | Servants nfs | 494 |
| 15 | odonnall | catherine | F | 40 | Roman Catholic | Irish | Ireland | No Occupation Listed | 322 |
| 20 | odonnall | ellen | F | 14 | Roman Catholic | Irish | Ontario | No Occupation Listed | 322 |
| 18 | odonnall | james | M | 18 | Roman Catholic | Irish | Ontario | Railway builders, workers and labourers | 322 |
| 17 | odonnall | john | M | 21 | Roman Catholic | Irish | Ontario | Metal casters and workers in metal casting plants | 322 |
| 16 | odonnall | mary | F | 22 | Roman Catholic | Irish | Ontario | Dressmakers | 322 |
| 19 | odonnall | patrick | M | 16 | Roman Catholic | Irish | Ontario | No Occupation Listed | 322 |
| 14 | odonnall | richard | M | 45 | Roman Catholic | Irish | Ontario | Labourers nfs | 322 |
| 25 | odonnell | annie | F | 28 | Roman Catholic | Irish | Ontario | No Occupation Listed | 33 |
| 24 | odonnell | richard | M | 29 | Roman Catholic | Irish | Ontario | Carpenters | 33 |
| 1 | odonnell | william | M | 0 | Roman Catholic | Irish | Ontario | No Occupation Listed | 33 |
| 11 | oharra | agnus | F | 7 | Roman Catholic | Irish | Ontario | No Occupation Listed | 109 |
| 1 | oharra | catherine | F | 34 | Roman Catholic | Irish | Ireland | No Occupation Listed | 62 |
| 10 | oharra | emma | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 109 |
| 25 | oharra | john | M | 66 | Roman Catholic | Irish | Ireland | No Occupation Listed | 62 |
| 2 | oharra | john | M | 37 | Roman Catholic | Irish | Ireland | Labourers nfs | 62 |
| 7 | oharra | joseph | M | 19 | Roman Catholic | Irish | Ontario | Clerk, nfs | 109 |
| 9 | oharra | loretta | F | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 109 |
| 6 | oharra | maggie | F | 21 | Roman Catholic | Irish | Ontario | Milliners | 109 |
| 5 | oharra | mary | F | 46 | Roman Catholic | Irish | Ireland | No Occupation Listed | 109 |
| 8 | oharra | minnie | F | 16 | Roman Catholic | Irish | Ontario | Milliners | 109 |
| 7 | ohary _issy | william | M | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 160 |
| 25 | okeefe | nellie | F | 22 | Roman Catholic | Irish | Ontario | Servants nfs | 205 |
| 13 | okieff | annie | F | 15 | Roman Catholic | Irish | Ontario | No Occupation Listed | 106 |
| 14 | okieff | bengamen | M | 12 | Roman Catholic | Irish | Ontario | No Occupation Listed | 106 |
| 12 | okieff | dennis | M | 16 | Roman Catholic | Irish | Ontario | Labourers nfs | 106 |
| 9 | okieff | ellen | F | 21 | Roman Catholic | Irish | Ontario | No Occupation Listed | 106 |
| 11 | okieff | james | M | 18 | Roman Catholic | Irish | Ontario | Painters, nfs | 106 |
| 8 | okieff | jeremiah | M | 50 | Roman Catholic | Irish | Ireland | Labourers nfs | 106 |
| 10 | okieff | maggie | F | 19 | Roman Catholic | Irish | Ontario | Servants nfs | 106 |
| 15 | okieff | minnie | F | 10 | Roman Catholic | Irish | Ontario | No Occupation Listed | 106 |
| 13 | oliver | jennie | F | 0 | Anglican | English | Ontario | No Occupation Listed | 491 |
| 19 | oliver | john | M | 38 | Roman Catholic | Irish | Ireland | No Occupation Listed | 80 |
| 10 | oliver | llewellen | M | 48 | Anglican | English | England | Medical Doctors and physicians (not UK) | 491 |
| 11 | oliver | margaret | F | 38 | Anglican | English | Ontario | No Occupation Listed | 491 |
| 20 | oliver | maria | F | 27 | Roman Catholic | Irish | Ontario | No Occupation Listed | 80 |
| 12 | oliver | vivian | M | 2 | Anglican | English | Ontario | No Occupation Listed | 491 |
| 12 | olton | alice | F | 1 | Methodist | English | Ontario | No Occupation Listed | 440 |
| 10 | olton | elizabeth | F | 26 | Methodist | English | Ontario | No Occupation Listed | 440 |
| 11 | olton | frederick | M | 7 | Methodist | English | Ontario | No Occupation Listed | 440 |
| 9 | olton | henry | M | 32 | Methodist | English | Ontario | Tinsmiths and Tinners and Tinkers | 440 |
| 13 | olton | joseph | M | 28 | Methodist | English | Ontario | Tinsmiths and Tinners and Tinkers | 440 |
| 1 | omara | thomas | M | 26 | Roman Catholic | Irish | Ontario | Clerks in shops and stores | 214 |
| 4 | oneil | mary | F | 64 | Roman Catholic | Irish | Ireland | No Occupation Listed | 429 |
| 5 | oneil | william | M | 31 | Roman Catholic | Irish | Ontario | Clerks in shops and stores | 429 |
| 12 | orchard | esther | F | 23 | Methodist | English | Ontario | No Occupation Listed | 416 |
| 1 | ormsby | john | M | 36 | Anglican | Irish | Ontario | Commercial travellers | 161 |
| 4 | ormsby | john | M | 2 | Anglican | Irish | Ontario | No Occupation Listed | 161 |
| 2 | ormsby | kate | F | 32 | Anglican | Irish | United States | No Occupation Listed | 161 |
| 3 | ormsby | walter | M | 4 | Anglican | Irish | Ontario | No Occupation Listed | 161 |
| 5 | ormsby | william | M | 0 | Anglican | Irish | Ontario | No Occupation Listed | 161 |
| 6 | orr | addie | F | 14 | Methodist | Irish | Ontario | No Occupation Listed | 342 |
| 7 | orr | albert | M | 2 | Methodist | Irish | Ontario | No Occupation Listed | 342 |
| 11 | orr | alexander | M | 12 | Reformed Episcopal | Irish | Ontario | No Occupation Listed | 101 |
| 10 | orr | archibald | M | 14 | Reformed Episcopal | Irish | Ontario | Factory labourers (non-specified manufacturing) | 101 |
| 14 | orr | bertha | F | 2 | Methodist | Irish | Ontario | No Occupation Listed | 102 |
| 9 | orr | charles | M | 20 | Reformed Episcopal | Irish | Ontario | Tinsmiths and Tinners and Tinkers | 101 |
| 3 | orr | elizabeth | F | 3 | Roman Catholic | Irish | Ontario | No Occupation Listed | 100 |
| 6 | orr | george | M | 60 | Anglican | Irish | Ireland | No Occupation Listed | 101 |
| 12 | orr | george | M | 21 | Reformed Episcopal | Irish | Ontario | Bricklayers | 102 |
| 13 | orr | gertrude | F | 20 | Methodist | Irish | Ontario | No Occupation Listed | 102 |
| 7 | orr | hannah | F | 55 | Reformed Episcopal | Scottish | Ireland | No Occupation Listed | 101 |
| 5 | orr | maggie | F | 16 | Methodist | Irish | Ontario | No Occupation Listed | 342 |
| 8 | orr | margaret | F | 25 | Reformed Episcopal | Irish | Ontario | No Occupation Listed | 101 |
| 2 | orr | mary | F | 31 | Roman Catholic | Irish | Ontario | No Occupation Listed | 100 |
| 4 | orr | mary | F | 3 | Roman Catholic | Irish | Ontario | No Occupation Listed | 100 |
| 5 | orr | oliver | M | 1 | Roman Catholic | Irish | Ontario | No Occupation Listed | 100 |
| 4 | orr | priscilla | F | 35 | Methodist | German | Ontario | No Occupation Listed | 342 |
| 1 | orr | robert | M | 33 | Anglican | Irish | Ontario | Bricklayers | 100 |
| 8 | orr | watson | M | 35 | Methodist | Irish | Quebec | Lumberers and loggers | 342 |
| 3 | orr DCB | wesley | M | 50 | Methodist | Irish | Quebec | Lumberers and loggers | 342 |
| 23 | oshea | jane | F | 75 | Roman Catholic | Irish | Ireland | No Occupation Listed | 165 |
| 22 | oshea | patrick | M | 78 | Roman Catholic | Irish | Ireland | Wine workers | 165 |
| 10 | ottaway | ellen | F | 14 | Methodist | English | England | No Occupation Listed | 92 |
| 14 | ottaway | ellen | F | 15 | Methodist | English | England | Servants nfs | 317 |
| 8 | ottaway | george | M | 38 | Methodist | English | England | Labourers nfs | 92 |
| 9 | ottaway | jane | F | 33 | Methodist | English | England | No Occupation Listed | 92 |
| 14 | ottaway | jane | F | 2 | Methodist | English | Ontario | No Occupation Listed | 92 |
| 13 | ottaway | margaret | F | 7 | Methodist | English | Ontario | No Occupation Listed | 92 |
| 12 | ottaway | mary | F | 5 | Methodist | English | Ontario | No Occupation Listed | 92 |
| 11 | ottaway | sarah | F | 8 | Methodist | English | Ontario | No Occupation Listed | 92 |
| 12 | overand | charles | M | 22 | Roman Catholic | Irish | Ontario | Occupational title unclassifiable | 118 |
| 24 | overs | annie | F | 20 | Roman Catholic | English | Ontario | Seamstress | 43 |
| 3 | overs | arthur | M | 4 | Roman Catholic | English | Ontario | No Occupation Listed | 43 |
| 1 | overs | clara | F | 14 | Roman Catholic | English | Ontario | No Occupation Listed | 43 |
| 21 | overs | george | M | 51 | Roman Catholic | English | England | Teamsters (inc. mine driver, etc.) | 43 |
| 25 | overs | george | M | 16 | Roman Catholic | English | Ontario | Teamsters (inc. mine driver, etc.) | 43 |
| 23 | overs | james | M | 19 | Roman Catholic | English | Ontario | Teamsters (inc. mine driver, etc.) | 43 |
| 2 | overs | john | M | 12 | Roman Catholic | English | Ontario | No Occupation Listed | 43 |
| 4 | overs | margaret | F | 3 | Roman Catholic | English | Ontario | No Occupation Listed | 43 |
| 22 | overs | mary | F | 40 | Roman Catholic | Irish | Ontario | No Occupation Listed | 43 |
| 14 | oxenham | jessie | F | 32 | Methodist | Scottish | England | No Occupation Listed | 273 |
| 13 | oxenham | richard | M | 59 | Methodist | English | England | No Occupation Listed | 273 |