McBains in MI

Looking for relatives.My great grandfather Gillis McBain homesteaded McBain, MI.His father was William McBain and mother was Mary or Margaret McBain.His Brothers were Duncan, Alexander, William, and John and a sister named Anne who married a Kennedy.I am trying to find some info on gr gr grandparents William and Mary or Margaret McBain.My great grandfather was born in Gault, Ontario.