Residents of Saint Martin's — Sub-district I, surnames O (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 16 | oar | bridget | F | 53 | Roman Catholic | Irish | Cape Breton | No Occupation Listed | 243 |
| 15 | oar | john | M | 45 | Anglican | Irish | Ireland | Labourers nfs | 243 |
| 16 | odell | amesy | M | 19 | Baptist | German | New Brunswick | Labourers nfs | 73 |
| 15 | odell | ebenezar | M | 22 | Baptist | German | New Brunswick | Farmers, general and nfs | 73 |
| 17 | odell | jessie | F | 4 | Baptist | German | New Brunswick | No Occupation Listed | 73 |
| 13 | odell | neahemia | M | 67 | Baptist | German | New Brunswick | Farmers, general and nfs | 73 |
| 14 | odell | rubie | F | 62 | Baptist | German | New Brunswick | No Occupation Listed | 73 |
| 9 | odonel | elizabeth | F | 44 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 241 |
| 10 | odonel | johana | F | 13 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 241 |
| 11 | odonel | mary | F | 26 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 241 |
| 8 | odonel | nathaniel | M | 42 | Roman Catholic | Irish | New Brunswick | Lumberers and loggers | 241 |
| 4 | oharrow | bessie | F | 9 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 146 |
| 1 | oharrow | catherine | F | 16 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 146 |
| 3 | oharrow | charles | M | 10 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 146 |
| 23 | oharrow | james | M | 45 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 146 |
| 2 | oharrow | james | M | 14 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 146 |
| 5 | oharrow | john | M | 7 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 146 |
| 7 | oharrow | margret | F | 2 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 146 |
| 24 | oharrow | mary | F | 42 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 146 |
| 6 | oharrow | walter | M | 4 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 146 |
| 25 | oharrow | william | M | 18 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 146 |
| 22 | oneal | james | M | 50 | Roman Catholic | Irish | New Brunswick | Farmers, general and nfs | 115 |
| 23 | oneal | margret | F | 42 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 115 |
| 21 | oneal | patrick | M | 82 | Roman Catholic | Irish | Ireland | Farmers, general and nfs | 115 |
| 24 | oneal | patrick | M | 40 | Roman Catholic | Irish | New Brunswick | No Occupation Listed | 115 |
| 13 | osborn | ester | F | 20 | Methodist | Irish | New Brunswick | No Occupation Listed | 79 |
| 9 | osborn | marietta | F | 22 | Anglican | German | New Brunswick | No Occupation Listed | 78 |
| 10 | osborn | matilda | F | 3 | Anglican | German | New Brunswick | No Occupation Listed | 78 |
| 12 | osborn | matilda | F | 60 | Baptist | Blank | New Brunswick | No Occupation Listed | 79 |
| 8 | osborn | samuel | M | 26 | Baptist | Scottish | New Brunswick | Labourers nfs | 78 |
| 11 | osborn | william | M | 60 | Presbyterian | Irish | Ireland | Ship’s carpenter | 79 |
| 9 | osbourn | annie | F | 43 | Anglican | Irish | New Brunswick | No Occupation Listed | 2 |
| 11 | osbourn | croford | M | 19 | Anglican | Irish | New Brunswick | Labourers nfs | 2 |
| 12 | osbourn | george | M | 16 | Anglican | Irish | New Brunswick | Labourers nfs | 2 |
| 10 | osbourn | james | M | 22 | Anglican | Irish | New Brunswick | Labourers nfs | 2 |
| 8 | osbourn | joseph | M | 56 | Reformed Presbyterian | Irish | Ireland | Ship’s carpenter | 2 |
| 15 | osbourn | maggie | F | 7 | Anglican | Irish | New Brunswick | No Occupation Listed | 2 |
| 13 | osbourn | samuel | M | 14 | Anglican | Irish | New Brunswick | No Occupation Listed | 2 |
| 14 | osbourn | william | M | 12 | Anglican | Irish | New Brunswick | No Occupation Listed | 2 |