(3167) Babcock = 1943 TH = 1955 RS = 1955 SC2 = 1966 FF = 1971 QL1 = 1971 SB4 = 1974 FS = 1974 HB1 = 1979 SX1 [online]. The International Astronomical Union Minor Planet Center minorplanetcenter.net, [cit. 2020-09-13]. Dostupné online. (po anglicky)
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O'CONNOR, Anahad. Horace W. Babcock, 90, Planner And Developer of Telescopes [online]. nytimes.com, 2003-09-05, [cit. 2020-09-13]. Dostupné online. (po anglicky)