Del Mar, “Del Mar Horse Racing History,” dmtc.com.
Los Angeles Times (Calif.), “Crosby’s Del Mar Race Track Exudes Class,” Paul Lowry, June 29, 1937.
Los Angeles Times (Calif.), “Track Hold-Up Plot Balked,” Aug. 2, 1937.
The Charleston Daily Mail (W. Va.), “Racing Returns Golden Era to California Border,” July 9, 1937.
The Gambler & The Bug Boy: 1939 Los Angeles and the Untold Story of a Horse Racing Fix, John Christgau, Bison Books, 2013.