found: His Of force & violence & other imponderables, 1984: CIP t.p. (Reginald Brethnor) data sheet (b. 1911)
found: LC data base, 1/6/84 (hdg.: Bretnor, Reginald)
found: Bred any good rooks lately? 1986 p. 11 (Grendel Briarton, the nom e calembour of Reginald Bretnor)
found: The timeless tales of Reginald Bretnor, c1997: t.p. ; p. 6 (Reginald Bretnor, 1911-1992, was born Alfred Reginald Kahn in Vladivostok, Siberia, the son of a Latvian Jewish banker and an English governess. The family moved to San Diego, Calif., in 1920. Bretnor was the maiden name of his (English) maternal grandmother)