He was born in Toronto and attended Oakwood Collegiate Institute and St. Andrew's College, Aurora, Class of 1946.

He ran for the Parliament of Canada in the 1968 federal election as the Progressive Conservative candidate for York—Scarborough[28][29][30] and lost to Liberal Robert Stanbury.

[40] During the 1980s Heisey was Chairman of PC Metro, an umbrella organization of 31 Federal Progressive Conservative Party riding associations in and around what was then Metropolitan Toronto[41][42][43] He was outspoken in his criticism of Prime Minister Stephen Harper's treatment of Nigel S. Wright in the Canadian Senate expenses scandal at the 2013 Conservative Party National Convention in Calgary.

[47][48][49] He was chairman of the Works Committee[50] and an active member of North York Council[51][52][53][54][55][56][57][58][59][60][61][62][63][64] As alderman he championed the equitable distribution of group homes throughout the city,[65] naming rather than numbering city electoral districts,[66][67] market value assessment for property taxes[68][69] and criticised the conduct and decorum of fellow council members.

[70] In November 1979 Heisey supported the introduction of a new Toronto Transit Commission Bus Route 115, servicing the Silver Hills area in North York, that travelled through a wealthy neighbourhood in face of strong opposition.

[83] As a result of Heisey's contributions as a writer and as a long time resident in the Township of Georgian Bay the Ontario Minister of Natural Resources officially named a group of islands in the Township of Georgian Bay located to the northwest of Beausoleil Island near Honey Harbour, on the Georgian Bay after him on July 17, 2017, pursuant to Section 4 of the Ontario Geographic Names Board Act, R.S.O.