Correspondence, memorabilia, writings, and publications of the Luxembourg-American author, editor, publisher, and entrepreneur in the fields of amateur radio, electronics, and science fiction.

Correspondence, financial and legal material, memorabilia, fanzines, and writings including short stories, plays, novels, novellas, and miscellaneous items.

Papers of the American author of adventure, detective, Western, and science fiction short stories and novels, most of then written under the name Murray Leinster. Collection includes correspondence with authors, fans, literary agents, periodical editors, and publishers (1920-1967); and typescript and/or published articles, short stories, and books. Notable correspondents include Forrest J. Ackerman, Alonzo Dean Cole, Viola Irene Cooper, Roger Elwood, Harold Hersey, Frederik Pohl, Percy Waxman, and Mort Weisinger.