Who's who in American music. Classical, c1983 (Hambro, Leonid; b. June 26, 1920, Chicago, Ill.)
New York times WWW site, Oct. 26, 2006 (Leonid Hambro; b. in Chicago; d. Monday [Oct. 23, 2006], Manhattan, aged 86; concert pianist noted for his prodigious memory, improvising genius, and humorous musical desecrations as Victor Borge's straight man)