James Fron "Sonny" Throckmorton (born April 2, 1941) is an American country music singer and songwriter. Known primarily for his songwriting, Throckmorton has had more than 1,000 of his songs recorded by various country singers. He has also had minor success as a recording artist, having released two major-label albums: The Last Cheater's Waltz in 1978 on Mercury Records and Southern Train in 1986 on Warner Bros. Records. Throckmorton is a member of the Nashville Songwriters' Hall of Fame, and has been awarded Songwriter of the Year by both Broadcast Music Incorporated and the Nashville Songwriters Association International.