Thomas B. Costain

Thomas Bertram Costain (May 8, 1885 – October 8, 1965) was a Canadian-American journalist who became a best-selling author of historical novels at the age of 57. Dictionary of Literary Biography, Volume 9: American Novelists, 1910-1945.

Luther, Philip. "Thomas Bertram Costain" in the Dictionary of American Biography, Supplement 7: 1961-1965.

Ontario, Canada Marriages, 1857-1924. MS932_145 (specifies York, Ontario as place of marriage)

"Screen Notes" New York Times, October 16, 1934, page 31.

"Southron, Jane Spence "The Pirate" July 26, 1942, page BR6.

"Thos. Costain, Novelist and Editor, Dies" Chicago Tribune, October 9, 1965.