Doug Sahm and Band (Musical group). Doug Sahm and Band [SR] p1973 label (Doug Sahm)
Texas rock for country rollers, p1976 label (Sir Doug)
New Grove dict. of American music (Sahm (Saldana) Doug(las); b. San Antonio, TX, 6 Nov. 1941; performed as part of Sir Douglas Quintet)
New York Times, Nov. 22, 1999 (Doug Sahm, musical voice of Texas, 58; found dead Nov. 18, 1999, Taos, N.M.; b. Douglas Wayne Sahm)
Wikipedia, June 6, 2013 (Doug Sahm; born Douglas Wayne Sahm, November 6, 1941, San Antonio, Tex., died November 18, 1999, Taos, N.M.; American musican (singer, guitar, steel guitar, mandolin, violin); significant figure in blues-rock and Tejano music; founder and leader of the Sir Douglas Quintet and the Texas Tornados)