Residents of Gwillimbury W-O — Sub-district B, surnames J (1881 Census)
| # | Surname | Given | Sex | Age | Religion | Origin | Birthplace | Occupation | HH |
| 18 | jackson | ann | F | 12 | Presbyterian | English | Ontario | No Occupation Listed | 345 |
| 5 | jackson | eliza | F | 28 | Primitive Methodist | English | Ontario | No Occupation Listed | 190 |
| 2 | jackson | nathan | M | 80 | Primitive Methodist | English | England | Farmers, general and nfs | 190 |
| 3 | jackson | richard | M | 33 | Methodist | English | Ontario | Farmers, general and nfs | 190 |
| 4 | jackson | thomas | M | 24 | Methodist | English | Ontario | Farmers, general and nfs | 190 |
| 20 | jamison | m | F | 47 | Presbyterian | Irish | Ireland | No Occupation Listed | 185 |
| 22 | jamison | m | F | 18 | Presbyterian | Irish | Ontario | No Occupation Listed | 185 |
| 21 | jamison | norval | M | 22 | Presbyterian | Irish | Ontario | Teachers (unspecified) | 185 |
| 23 | jamison | richard | M | 14 | Presbyterian | Irish | Ontario | No Occupation Listed | 185 |
| 19 | jamison | william | M | 51 | Presbyterian | Irish | Ireland | Boot and shoemakers and repairers | 185 |
| 25 | jebb | allan | M | 1 | Anglican | Irish | Ontario | No Occupation Listed | 206 |
| 24 | jebb | barry | M | 2 | Anglican | Irish | Ontario | No Occupation Listed | 206 |
| 17 | jebb | charles | M | 38 | Anglican | Irish | Ontario | Farmers, general and nfs | 84 |
| 21 | jebb | eliza | F | 38 | Anglican | Irish | Ontario | No Occupation Listed | 206 |
| 11 | jebb | emily | F | 55 | Methodist | Irish | Ontario | No Occupation Listed | 78 |
| 2 | jebb | george | M | 26 | Anglican | Irish | Ontario | river drivers | 216 |
| 20 | jebb | john | M | 48 | Anglican | Irish | Ontario | Farmers, general and nfs | 206 |
| 18 | jebb | mary | F | 37 | Anglican | Irish | Ontario | No Occupation Listed | 84 |
| 23 | jebb | milton | M | 4 | Anglican | Irish | Ontario | No Occupation Listed | 206 |
| 12 | jebb | thomas | M | 25 | Methodist | Irish | Ontario | Jewellers | 78 |
| 10 | jebb | washburn | M | 51 | Anglican | Irish | Ontario | Agent nfs | 78 |
| 22 | jebb | william | M | 6 | Anglican | Irish | Ontario | No Occupation Listed | 206 |
| 12 | jeffery | elizabeth | F | 40 | Methodist | English | England | No Occupation Listed | 170 |
| 13 | jeffery | george | M | 4 | Methodist | English | Ontario | No Occupation Listed | 170 |
| 11 | jeffery | william | M | 36 | Methodist | English | England | Labourers nfs | 170 |
| 22 | jeffs | beverly | M | 17 | Methodist | Irish | Ontario | Farmers, general and nfs | 113 |
| 25 | jeffs | compton | M | 9 | Methodist | Irish | Ontario | No Occupation Listed | 113 |
| 19 | jeffs | edward | M | 43 | Methodist | Irish | Ontario | Farmers, general and nfs | 113 |
| 1 | jeffs | erena | F | 7 | Methodist | Irish | Ontario | No Occupation Listed | 113 |
| 23 | jeffs | eva | F | 14 | Methodist | Irish | Ontario | No Occupation Listed | 113 |
| 21 | jeffs | florence | F | 18 | Methodist | Irish | Ontario | Teachers (unspecified) | 113 |
| 10 | jeffs | hannah | F | 76 | Anglican | English | Ontario | No Occupation Listed | 85 |
| 24 | jeffs | josepehen | F | 12 | Methodist | Irish | Ontario | No Occupation Listed | 113 |
| 20 | jeffs | mary | F | 46 | Methodist | English | Ontario | No Occupation Listed | 113 |
| 11 | jeffs | phoebia | F | 50 | Methodist | English | Ontario | No Occupation Listed | 85 |
| 23 | jelly | alice | F | 15 | Presbyterian | Irish | Ontario | No Occupation Listed | 12 |
| 25 | jelly | clara | F | 3 | Presbyterian | Irish | Ontario | No Occupation Listed | 12 |
| 18 | jelly | elizabeth | F | 56 | Presbyterian | Irish | Scotland | No Occupation Listed | 12 |
| 20 | jelly | elizabeth | F | 24 | Presbyterian | Irish | Ontario | No Occupation Listed | 12 |
| 21 | jelly | mary | F | 22 | Presbyterian | Irish | Ontario | No Occupation Listed | 12 |
| 24 | jelly | robert | M | 12 | Presbyterian | Irish | Ontario | No Occupation Listed | 12 |
| 22 | jelly | samuel | M | 18 | Presbyterian | Irish | Ontario | No Occupation Listed | 12 |
| 17 | jelly | william | M | 69 | Presbyterian | Irish | Ireland | Farmers, general and nfs | 12 |
| 19 | jelly | william | M | 30 | Presbyterian | Irish | Ontario | Farmers, general and nfs | 12 |
| 22 | jennison | ann | F | 76 | Methodist | English | England | No Occupation Listed | 155 |
| 23 | jennison | letitia | F | 27 | Methodist | English | Ontario | No Occupation Listed | 155 |
| 21 | jennison | william | M | 29 | Methodist | English | Ontario | Farmers, general and nfs | 155 |
| 12 | jermyn | hannah | F | 22 | Anglican | Irish | Ontario | No Occupation Listed | 304 |
| 11 | jermyn | martha | F | 54 | Anglican | Irish | Ireland | No Occupation Listed | 304 |
| 10 | jermyn | william | M | 28 | Anglican | Irish | Ontario | Farmers, general and nfs | 304 |
| 1 | johnson | william | M | 25 | Presbyterian | English | Ontario | river drivers | 83 |
| 6 | johnston | ann | F | 23 | Methodist | Scottish | Ontario | No Occupation Listed | 18 |
| 4 | johnston | caroline | F | 51 | Methodist | Irish | Ontario | No Occupation Listed | 18 |
| 8 | johnston | eleanor | F | 18 | Methodist | Scottish | Ontario | Teachers (unspecified) | 18 |
| 2 | johnston | elena | F | 9 | Anglican | Irish | Ontario | No Occupation Listed | 337 |
| 7 | johnston | george | M | 21 | Methodist | Scottish | Ontario | Farmers, general and nfs | 18 |
| 25 | johnston | james | M | 19 | Anglican | Irish | Ontario | river drivers | 337 |
| 22 | johnston | john | M | 58 | Anglican | Irish | Ontario | Farmers, general and nfs | 337 |
| 1 | johnston | josephine | F | 12 | Anglican | Irish | Ontario | No Occupation Listed | 337 |
| 23 | johnston | rebecca | F | 40 | Methodist | Irish | Ireland | No Occupation Listed | 337 |
| 11 | johnston | richard | M | 60 | Anglican | English | England | river drivers | 322 |
| 3 | johnston | robert | M | 13 | Anglican | Irish | Ontario | No Occupation Listed | 337 |
| 3 | johnston | william | M | 63 | Methodist | Scottish | Ontario | Farmers, general and nfs | 18 |
| 5 | johnston | william | M | 25 | Methodist | Scottish | Ontario | Farmers, general and nfs | 18 |
| 24 | johnston | william | M | 22 | Anglican | Irish | Ontario | Farmers, general and nfs | 337 |
| 23 | jones | ann | F | 55 | Roman Catholic | Irish | Ireland | No Occupation Listed | 145 |
| 22 | jones | george | M | 59 | Anglican | English | England | river drivers | 145 |
| 13 | jones | george | M | 13 | Anglican | Welsh | Ontario | No Occupation Listed | 290 |
| 10 | jones | john | M | 42 | Anglican | Welsh | Ireland | Workers in Religion nec | 290 |
| 11 | jones | mary | F | 36 | Methodist | Irish | Ontario | No Occupation Listed | 290 |
| 14 | jones | william | M | 7 | Anglican | Welsh | Ontario | No Occupation Listed | 290 |
| 12 | jones | wilson | M | 14 | Anglican | Welsh | Ontario | No Occupation Listed | 290 |