I agree that fictioneer's name alone is insufficient. Just as an absolute fluke, however, I see that the name "Wrayanne" appears in the toc for Squire 03-05, 1975-10, p.12
here. Not the commonest of first names.
Does anyone know what other mag. titles were in the Challenge group? At present--from other posts by fictioneer--I know only of Squire, Candid, and Casanova.
edit: Wrayanne's also on the cover--see
here--and listed in the toc for Climax [Original?], 21-05, 1975-05, p.36
here.