After leaving the family farm, Black worked as a trackman for the Canadian Pacific Railway. Black moved to Parham in 1894, where he operated a general store and worked as a contractor. He was also involved in lumbering and contracting in the Temagami region.
Black served on the municipal council for Parham and was a justice of the peace and an issuer of marriage licenses.
He also served as secretary-treasurer of the Agricultural Society. He retired from politics in 1943 due to health problems.
Black died in Ottawa the following year at the age of 76.