"John Sebastian" (obituary), Reading Eagle, August 22, 1980, p. 29. Although this obituary reports Sebastian's age at death as 65, he would have actually been 66 based on his birth date of April 25, 1914 as listed in the official U.S. Social Security Death Index record.
Callahan, Mike, and Peter Aarts, "Cadence Singles/EP Discography", bsnpubs.com, November 3, 2011, archived at archive.org September 23, 2014. Retrieved June 20, 2015.