In 1935 he was working at WBZ-AM in Boston, Massachusetts where he performed with a band that included young singer and banjo player Marshall Jones. Kincaid teased the 22-year-old fellow Kentuckian for always being grumpy when he came to the studio to do the early morning broadcast, nicknaming him "Grandpa" Jones. The moniker became permanent for the future Grand Ole Opry star.
In 1988, the then-93-year-old Kincaid was involved in an automobile accident and sustained injuries from which he never fully recovered. He died in 1989 at the age of 94 in Springfield, Ohio and was interred there in the Ferncliff Cemetery.
^David Sanjek, "All the Memories Money Can Buy: Marketing Authenticity and Manufacturing Authorship", p. 155–172 in Eric Weisbard, ed., This is Pop, Harvard University Press, 2004. ISBN0-674-01321-2 (cloth), ISBN0-674-01344-1 (paper). p. 157.
^"Flashback: The 'Opry' Gets A Grandpa", Country Weekly, March 2004. Quoted in part on FindArticles.com. Accessed online 25 August 2007.