Territoire du Nord-Ouest
William Morrison MacKay, (1836–1917) maintained a private practice in Edmonton, Alberta from 1898 until he died in 1917. He served in what was then the North-Western Territory, as a Hudson’s Bay Company (HBC) clerk and surgeon and spent over three decades there—from 1864 to 1898, eventually becoming the HBC Factor in Fort Chipewyan. He was one of several physicians from Scotland who practiced medicine in Alberta.