| Letters from Rupert's Land, 1826-1840 : James Hargrave of the Hudson's Bay Company Helen Ross is a former scientist and epidemiologist at the Centre for Addiction and Mental Health in Toronto. |
| Letters from Rupert's Land, 1826-1840 : James Hargrave of the Hudson's Bay Company Helen Ross is a former scientist and epidemiologist at the Centre for Addiction and Mental Health in Toronto. |