John MacKenzie was born in 1794 in Athabasca, Alberta and died in 1871 in Terrebonne, Quebec. He was one of the nine children of Roderick Mackenzie of Terrebonne (1761-1844) and an unknown Chipewyan or Cree mother (1775-?). Mackenzie married Catherine Oldham in Montreal. He was a merchant, entrepreneur, and the Postmaster of Terrebonne.
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