Campbell married Harriet Burns, daughter of the Ojibwa Chief Keeseekoowenin, who had been baptized as Moses Burns by the Presbyterian missionary George Flett.
Keeseekoowenin's band accepted the Presbyterian mission of his cousin George Flett, and Keeseekoowenin was baptized as Moses Burns.
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Their son George Flett later became a Presbyterian missionary attached to Keeseekoowenin's band.
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He died on 10 April 1906 on Keeseekoowenin Reserve, and was buried there.
The Hudson's Bay Company established the post for the purpose of trading with the Ojibwe people led by Chief Okanase and then by Chief Keeseekoowenin.