 Core-Mark was started in San Francisco in 1888 by the Glaser brothers.After multi-generational ownership, the Glaser family sold the company to David Gillespie in 1974, who took the company public by listing on the Toronto Stock Exchange with Gerald Pickman COO and Jerry Goldman CFO in 1984.By late 1987, private equity firms were an integral part of the ownership and the company went private in 1989.