In 1820 , his father immigrated to Canada and settled in Caledon Township on 100 acres of land , leaving his family in Scotland .
McLachlan was born in Johnstone , Scotland , to Charles McLachlan and Jean Sutherland .
In 1820 , McLachlan 's father immigrated to Canada and settled in Caledon Township on 100 acres of land , leaving his family Scotland Scotland .
McLachlan was born in Johnstone , Scotland , to Charles McLachlan and Jean Sutherland .