Stammel, H. J. (Heinz Josef), 1926-1990

found: LC data base, 9-23-86(hdg.: Stammel, Heinz Josef, 1926- ; usage: H.J. Stammel)

found: Kürsch. Lit. Kal., 1981(Stammel, Heinz-Josef (Ps. Christopher S. Hagen, T.C. Lockhart); b. 1-1-26; lists works)

found: Wer ist wer, 1985(Stammel, Heinz-J.; Ps. Christopher S. Hagen, T.C. Lockhart; b. 1-1-26; lists works)

found: Vom Robinson zum Harald Harst, 1984:p. 222 (Stammel, Heinz Josef; among his pseuds: Robert Ullman)

found: Wikipedia, German, January 31, 2019(Heinz-Josef Stammel; Heinz-Josef Stammel (born January 1, 1926 in Cologne; died January 22, 1990 in Alpirsbach) was a German press photographer, journalist and author; he was one of the most famous Western authors of the decades after the Second World War; Stammel wrote, mainly under his pseudonym Robert Ullman, between 1956 and 1966 about 120 Western novels; as early as 1965 Stammel began publishing a series of so-called Authentic Western, which initially appeared as hardcover under the pseudonym Christopher S. Hagen in Herder Verlag, and later also as paperbacks (now under Stammel) reprinted by Rowohlt)

found: Leihbuchregal-Eine Bibliographie, via WWW, January 31, 2019(Stammel, Heinz-Josef (1.1.1926--22.1.1990); German western writer and non-fiction author; pseudonyms: Perky S. Blane; Robert S. Field; Clint H. Fowler; Mark F. Gruver; Christopher S. Hagen; Robert M. Huxley; Mac Intosh; Jim Kellog; T. C. Lockhart; Jefferson Parker; Robert Starr; Robert Ullman) - http://leihbuchregal-aka.blogspot.com/2015/03/stammel-heinz-josef.html