found: Donizetti, G. Roberto Devereux [SR] 1970:label (Don Garrard, bass)
found: Perf. arts biog. master index, c1981(Garrard, Don; b. 1931)
found: Int. ww in mus., 19th ed.(Garrard, Don; b. July 31, 1929, Vancouver; bass)
found: Grove music online, May 20, 2005:Opera (Garrard, Don; b. July 31, 1929, Vancouver; Canadian bass)
found: Independent WWW site, Oct. 28, 2011(Don Garrard; b. July 31, 1929, Vancouver; d. Sept. 21, 2011, Johannesburg; bass who made his name with the Sadler's Wells company)