Anthony Gilmore
from Fancyclopedia 2 ca. 1959
4e Ackerman wrote the author of the Hawk Carse series for his autograph and Gilmore replied that he couldn't send it because AG was two authors working in collaboration. He declined to identify themselves and the arguments over his true name — which were the source of a gag-line, "Who is Anthony Gilmore?" — raged in FANTASY MAGAZINE from 1932, when the word was spread, to 1937 when Julius Schwartz tracked the culprits down to identify Harry Bates and Desmond Hall, Editor and Associate Editor of Astounding when the series was appearing.