Career
He represented Maillardville-Coquitlam from 1986 to 1991 and Coquitlam-Maillardville from 1991 to 2001 in the Legislative Assembly of British Columbia as a New Democratic Party (NDP) member. He was born in Lethbridge, Alberta, the son of John Harvey Cashore and Sarah Mildred Massey, and was educated at the University of British Columbia and Union College. Cashore has lived in Coquitlam, British Columbia since 1973.
He served in the provincial cabinet as Minister of Aboriginal Affairs, as Minister of Labour and as Minister of Environment, Lands and Parks.
He also served as parliamentary secretary to the Minister of Education.