Dorren Martin, “Alan Caswell Collier: Of Man and Nature - Firestone Art Collection” (programme), The Ottawa Art Gallery, 1998, pages 2-3
When asked by O.J. Firestone in 1965 to provide the names of twelve leading contemporary painters, A.Y. Jackson included Alan Collier on his list, leading Firestone to acquire more than fifty of Collier's works for the family's collection, purchasing “at least one piece to represent each year Collier painted in Canada from 1932 to 1972, when the Firestone Art Collection was donated to the public.” Collier shared a “desire to discover Canada” with Jackson, the painter “eventually logging more miles and locations than his famous predecessor.”