89-755489: His Thank you for calling [SR] 1964 (hdg. on OBgU rept.: Walker, Billy, 1929- ; usage: Billy Walker)
His Headin' for heartaches [SR] 1949 label (Billy Walker, the Travelin' Texan)
LC database, May 22, 2006 (hdg.: Walker, Billy, 1929- )
Yahoo! news WWW site, May 22, 2006 (Billy Walker; b. in Ralls, Tex.; d. Sunday [May 21, 2006], in a wreck south of Montgomery, Ala., aged 77; Grand Ole Opry legend whose hits included Charlie's shoes and Cross the Brazos at Waco)
Allmusic WWW site, May 22, 2006 (Billy Walker; b. Jan. 14, 1929, Ralls, TX)