Residents of Oro — Sub-district M, surnames A (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 14 | adam | agnes | F | 14 | Presbyterian | Scottish | Ontario | No Occupation Listed | 15 |
| 13 | adam | ann | F | 16 | Presbyterian | Scottish | Ontario | No Occupation Listed | 15 |
| 15 | adam | elen | F | 13 | Presbyterian | Scottish | Ontario | No Occupation Listed | 15 |
| 12 | adam | elisabeth | F | 39 | Presbyterian | Irish | Ireland | No Occupation Listed | 15 |
| 10 | adam | grace | F | 70 | Presbyterian | Scottish | Scotland | No Occupation Listed | 14 |
| 11 | adam | james | M | 42 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 15 |
| 14 | adams | agnes | F | 9 | Presbyterian | Scottish | Ontario | No Occupation Listed | 212 |
| 17 | adams | andrew | M | 1 | Presbyterian | Scottish | Ontario | No Occupation Listed | 212 |
| 12 | adams | anna | F | 62 | Anglican | English | England | No Occupation Listed | 193 |
| 13 | adams | euphema | F | 31 | Presbyterian | Scottish | Ontario | No Occupation Listed | 212 |
| 16 | adams | euphemia | F | 3 | Presbyterian | Scottish | Ontario | No Occupation Listed | 212 |
| 12 | adams | james | M | 32 | Presbyterian | Scottish | Ontario | Blacksmiths | 212 |
| 15 | adams | margaret | F | 7 | Presbyterian | Scottish | Ontario | No Occupation Listed | 212 |
| 24 | addison | eleanor | F | 18 | Anglican | English | Ontario | No Occupation Listed | 248 |
| 2 | addison | elizabeth | F | 11 | Anglican | English | Ontario | No Occupation Listed | 248 |
| 12 | addison | elizabeth | F | 58 | Anglican | English | England | No Occupation Listed | 276 |
| 1 | addison | irving | M | 14 | Anglican | English | Ontario | Farmers, general and nfs | 248 |
| 23 | addison | john | M | 22 | Anglican | English | Ontario | Farmers, general and nfs | 248 |
| 25 | addison | robert | M | 16 | Anglican | English | Ontario | Farmers, general and nfs | 248 |
| 21 | addison | sarah | F | 52 | Anglican | English | England | No Occupation Listed | 248 |
| 22 | addison | thomas | M | 24 | Anglican | English | Ontario | Farmers, general and nfs | 248 |
| 11 | addison | thomas | M | 61 | Anglican | English | England | Farmers, general and nfs | 276 |
| 20 | addison | wm | M | 57 | Anglican | English | England | Farmers, general and nfs | 248 |
| 16 | allan | elizabeth | M | 12 | Methodist | English | Ontario | No Occupation Listed | 344 |
| 17 | allan | henrietta | F | 14 | Methodist | English | Ontario | No Occupation Listed | 344 |
| 9 | allingham | douglas | M | 41 | Brethren | Irish | Ontario | Farmers, general and nfs | 116 |
| 4 | ames | agnes | F | 2 | Methodist | Irish | Ontario | No Occupation Listed | 285 |
| 5 | ames | allan | M | 0 | Methodist | Irish | Ontario | No Occupation Listed | 285 |
| 18 | ames | catherine | F | 17 | Congregationalist | English | Ontario | No Occupation Listed | 438 |
| 1 | ames | charles | M | 7 | Methodist | Irish | Ontario | No Occupation Listed | 285 |
| 21 | ames | david | M | 52 | Methodist | English | England | Farmers, general and nfs | 285 |
| 23 | ames | david | M | 12 | Methodist | Irish | Ontario | No Occupation Listed | 285 |
| 3 | ames | duncan | M | 15 | Anglican | English | Ontario | Farmers, general and nfs | 458 |
| 17 | ames | elizabeth | F | 48 | Methodist | English | Ontario | No Occupation Listed | 410 |
| 9 | ames | elizabeth | F | 0 | Anglican | English | Ontario | No Occupation Listed | 458 |
| 5 | ames | floriana | F | 12 | Anglican | English | Ontario | No Occupation Listed | 458 |
| 16 | ames | frances | F | 85 | Anglican | English | England | No Occupation Listed | 410 |
| 3 | ames | george | M | 4 | Methodist | Irish | Ontario | No Occupation Listed | 285 |
| 16 | ames | george | M | 21 | Congregationalist | English | Ontario | Farmers, general and nfs | 438 |
| 2 | ames | j | M | 5 | Methodist | Irish | Ontario | No Occupation Listed | 285 |
| 25 | ames | james | M | 45 | Anglican | English | Ontario | Farmers, general and nfs | 458 |
| 2 | ames | james | M | 18 | Anglican | English | Ontario | No Occupation Listed | 458 |
| 19 | ames | john | M | 14 | Congregationalist | English | Ontario | Farmers, general and nfs | 438 |
| 8 | ames | john | M | 3 | Anglican | English | Ontario | No Occupation Listed | 458 |
| 24 | ames | joseph | M | 9 | Methodist | Irish | Ontario | No Occupation Listed | 285 |
| 14 | ames | joseph | M | 54 | Congregationalist | English | England | Farmers, general and nfs | 438 |
| 17 | ames | margaret | F | 19 | Congregationalist | English | Ontario | No Occupation Listed | 438 |
| 7 | ames | margaret | F | 6 | Anglican | English | Ontario | No Occupation Listed | 458 |
| 1 | ames | marion | F | 44 | Anglican | English | Ontario | No Occupation Listed | 458 |
| 22 | ames | mary | F | 35 | Methodist | Irish | Ontario | No Occupation Listed | 285 |
| 18 | ames | mary | F | 17 | Methodist | English | Ontario | No Occupation Listed | 410 |
| 15 | ames | mary | F | 45 | Congregationalist | Scottish | Ontario | No Occupation Listed | 438 |
| 6 | ames | sarah | F | 9 | Anglican | English | Ontario | No Occupation Listed | 458 |
| 25 | ames | william | M | 8 | Methodist | Irish | Ontario | No Occupation Listed | 285 |
| 4 | ames | wm | M | 13 | Anglican | English | Ontario | No Occupation Listed | 458 |
| 9 | anderson | alexander | M | 22 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 178 |
| 3 | anderson | catharine | F | 19 | Congregationalist | Scottish | Scotland | No Occupation Listed | 243 |
| 7 | anderson | catharine | F | 0 | Congregationalist | Scottish | Ontario | No Occupation Listed | 244 |
| 4 | anderson | duncan | M | 30 | Congregationalist | Scottish | Scotland | Farmers, general and nfs | 244 |
| 7 | anderson | elisabeth | F | 55 | Anglican | Irish | Ireland | No Occupation Listed | 151 |
| 14 | anderson | ellen | F | 23 | Congregationalist | Scottish | Scotland | No Occupation Listed | 248 |
| 20 | anderson | emly | F | 26 | Methodist | Irish | Ontario | No Occupation Listed | 126 |
| 22 | anderson | george | M | 8 | Methodist | Irish | Ontario | No Occupation Listed | 126 |
| 6 | anderson | george | M | 67 | Anglican | Irish | Ireland | Farmers, general and nfs | 151 |
| 13 | anderson | george | M | 8 | Presbyterian | Scottish | Ontario | No Occupation Listed | 178 |
| 18 | anderson | george | M | 4 | Presbyterian | Scottish | Ontario | No Occupation Listed | 287 |
| 5 | anderson | isabella | F | 27 | Congregationalist | Scottish | Ontario | No Occupation Listed | 244 |
| 10 | anderson | james | M | 19 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 178 |
| 21 | anderson | john | M | 10 | Methodist | Irish | Ontario | No Occupation Listed | 126 |
| 5 | anderson | john | M | 58 | Presbyterian | Scottish | Scotland | Farmers, general and nfs | 178 |
| 7 | anderson | john | M | 26 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 178 |
| 17 | anderson | john | M | 7 | Presbyterian | Scottish | Ontario | No Occupation Listed | 287 |
| 16 | anderson | margaret | F | 31 | Presbyterian | Scottish | Ontario | No Occupation Listed | 287 |
| 6 | anderson | marion | F | 48 | Presbyterian | Scottish | Scotland | No Occupation Listed | 178 |
| 12 | anderson | marion | F | 12 | Presbyterian | Scottish | Ontario | No Occupation Listed | 178 |
| 21 | anderson | maron | F | 70 | Presbyterian | Scottish | Scotland | No Occupation Listed | 288 |
| 7 | anderson | mary | F | 80 | Methodist | Irish | Ireland | No Occupation Listed | 123 |
| 8 | anderson | mary | F | 11 | Methodist | Irish | Ontario | No Occupation Listed | 123 |
| 2 | anderson | mary | F | 59 | Congregationalist | Scottish | Scotland | No Occupation Listed | 243 |
| 6 | anderson | mary | F | 3 | Congregationalist | Scottish | Ontario | No Occupation Listed | 244 |
| 15 | anderson | ritchard | M | 33 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 287 |
| 11 | anderson | robert | M | 15 | Presbyterian | Scottish | Ontario | No Occupation Listed | 178 |
| 13 | anderson | robert | M | 31 | Congregationalist | Scottish | Scotland | Farmers, general and nfs | 248 |
| 6 | anderson | thomas | M | 74 | Methodist | Irish | Ireland | Farmers, general and nfs | 123 |
| 19 | anderson | thomas | M | 37 | Methodist | Irish | Ontario | Farmers, general and nfs | 126 |
| 8 | anderson | william | M | 24 | Presbyterian | Scottish | Ontario | Farmers, general and nfs | 178 |
| 19 | anderson | william | M | 2 | Presbyterian | Scottish | Ontario | No Occupation Listed | 287 |
| 11 | armstrong | edward | M | 51 | Anglican | English | England | Farmers, general and nfs | 22 |
| 12 | armstrong | eliza | F | 52 | Anglican | English | England | No Occupation Listed | 22 |
| 20 | armstrong | elizabeth | F | 54 | Presbyterian | Irish | Ireland | No Occupation Listed | 140 |
| 13 | armstrong | isabella | F | 17 | Anglican | English | Ontario | No Occupation Listed | 22 |
| 14 | armstrong | jackson | M | 14 | Anglican | English | Ontario | Farmers, general and nfs | 22 |
| 19 | armstrong | james | M | 48 | Presbyterian | Irish | Ireland | Blacksmiths | 140 |
| 15 | armstrong | joseph | M | 10 | Anglican | English | Ontario | No Occupation Listed | 22 |
| 21 | armstrong | thomas | M | 24 | Presbyterian | Irish | Ireland | Farmers, general and nfs | 140 |
| 25 | arthur | charles | M | 20 | Plymouth Brethren | English | Ontario | Farmers, general and nfs | 196 |
| 4 | arthur | edith | F | 12 | Plymouth Brethren | English | Ontario | No Occupation Listed | 196 |
| 2 | arthur | elizabeth | F | 11 | Plymouth Brethren | English | Ontario | No Occupation Listed | 211 |
| 1 | arthur | ellen | F | 22 | Plymouth Brethren | English | Ontario | No Occupation Listed | 196 |
| 2 | arthur | harry | M | 19 | Plymouth Brethren | English | Ontario | No Occupation Listed | 196 |
| 22 | arthur | james | M | 23 | Plymouth Brethren | English | Ontario | No Occupation Listed | 211 |
| 23 | arthur | joseph | M | 53 | Methodist | English | Ontario | Cartwrights and wheelwrights | 196 |
| 5 | arthur | joseph | M | 10 | Plymouth Brethren | English | Ontario | No Occupation Listed | 196 |
| 25 | arthur | joseph | M | 17 | Plymouth Brethren | English | Ontario | No Occupation Listed | 211 |
| 21 | arthur | mary | F | 54 | Plymouth Brethren | Irish | Ireland | No Occupation Listed | 211 |
| 1 | arthur | minerva | F | 15 | Plymouth Brethren | English | Ontario | No Occupation Listed | 211 |
| 24 | arthur | rosamond | F | 45 | Anglican | English | Ontario | No Occupation Listed | 196 |
| 3 | arthur | rosamond | F | 17 | Plymouth Brethren | English | Ontario | No Occupation Listed | 196 |
| 20 | arthur | samuel | M | 56 | Plymouth Brethren | English | England | Farmers, general and nfs | 211 |
| 23 | arthur | samuel | M | 22 | Plymouth Brethren | English | Ontario | No Occupation Listed | 211 |
| 24 | arthur | thomas | M | 20 | Plymouth Brethren | English | Ontario | No Occupation Listed | 211 |
| 10 | astley | jarry | F | 66 | Anglican | English | England | No Occupation Listed | 309 |
| 11 | astley | mary | F | 28 | Anglican | English | Ontario | No Occupation Listed | 309 |
| 2 | atkinson | annie | F | 7 | Methodist | English | Ontario | No Occupation Listed | 24 |
| 23 | atkinson | charles | M | 34 | Methodist | English | United States | Farmers, general and nfs | 24 |
| 1 | atkinson | charles | M | 10 | Methodist | English | Ontario | No Occupation Listed | 24 |
| 3 | atkinson | enoch | M | 6 | Methodist | English | Ontario | No Occupation Listed | 24 |
| 25 | atkinson | john | M | 12 | Methodist | English | Ontario | No Occupation Listed | 24 |
| 24 | atkinson | martha | F | 35 | Methodist | English | England | No Occupation Listed | 24 |
| 5 | atkinson | martha | F | 2 | Methodist | English | Ontario | No Occupation Listed | 24 |
| 6 | atkinson | mary | F | 1 | Methodist | English | Ontario | No Occupation Listed | 24 |
| 4 | atkinson | william | M | 5 | Methodist | English | Ontario | No Occupation Listed | 24 |