The deep universe, c1995 t.p. (A.R. Sandage) t.p. verso (prof., The Observatories, Pasadena, CA)
Centennial history of the Carnegie Institution of Washington, 2004 CIP v. 1, t.p. (Allan Sandage) data sht. (b. June 18, 1926)
New York times WWW site, Nov. 17, 2010 (Allan R. Sandage; b. Allan Rex Sandage, June 18, 1926, Iowa City, Iowa; d. Saturday [Nov. 13, 2010], San Gabriel, Calif., aged 84; spent his life measuring the universe, becoming the most influential astronomer of his generation)