found: His Revolt on Alpha C, 1955.
found: Contemp. au., CANR v. 1 (Robert Silverberg, b. 1935; pseuds.: Walker Chapman, Walter Drummond. Ivar Jorgenson, Calvin M. Knox, David Osborne, Lee Sebastian, Robert Randall (joint pseud. with Randall Garrett))
found: Clareson, T.D. Robert Silverberg, c1983: p. 293, etc. (pseuds. : Hamilton, Franklin; Hollander, Paul; Robinson, Lloyd; pseuds. [no publs. in LC data base]: Blaine, Laurence L.; Burnett, W.R.; Cook, Roy; Elliott, Don; Lynch, Dan; Nelson, Mildred; Ward, Jonas; Woodward, L.T.)
found: Robert Silverberg's pseudonymous novels Webpage, June 4, 2002 (around 1959 Silverberg began publishing quickly written ("in six days apiece") novels; continued writing roughly one a month through 1965 or 1966. Note: the pseudonyms "Don Holliday" and "Laura Duchamp" are often linked with Silverberg but, in fact, he never wrote under either name; many thanks to Robert Silverberg, etc. for their help with this list: Loren Beauchamp, David Challon, John Dexter, Dan Eliot, Don Elliot, Mark Ryan)
found: The old ones, 1965: t.p. (Robert Silverberg) back flap (a full-time writer since graduation from Columbia in 1956; lives in Riverdale, N.Y.; author of many books on archaeological and anthropological subjects)