found: His The Lower Miocene ruminants of Gebel Zelten, Libya, 1973:t.p. (William Roger Hamilton)
found: The Henry Holt guide to minerals, rocks, and fossils, 1989:t.p. (W.R. Hamilton)
found: Fossils and fossil collecting, 1975:t.p. (Roger Hamilton)
found: LC in OCLC, Apr. 21, 1998(hdg.: Hamilton, William Roger; usage: Roger Hamilton)
found: BL letter from author, pre-20 Oct. 1988(William Roger Hamilton, born 21 April 1945)
found: BnF authority file, 17 Feb. 2016(hdg.: Hamilton, William Roger; curator in the Dept. of Palaeontology, British Museum, in 1994)
notfound: Contemporary authors on CD, Nov. 1997.