Billboard May 29, 1971 :
Nashville – Funeral services were held here May 12 (1971) for R.C. (Bobby) Gregory, composer of more than 1,600 published songs.
Gregory, 71, died following a long bout with cancer. Among his more notable songs were « Old Rattler », « Little Darlin », « Am I Dreaming » and « Sunny Side of the Mountain ».
Gregory made some 26 movies, and appeared on the Roy Rogers network TV show. He was also credited as having been the first accordxion player ever to appear on radio, in 1927.
A native of Staunton, Va., he also performed for years with stage shows, rodeo and the vaudeville circuits. Among his partners along the way were Roy Rogers, Hank Snow, Smiley Burnette and the Lone Ranger. In the 1950’s, Gregory opened an art gallery in New York City. He and his widows later moved it to Nashville.