Premise: The Angel (Thomas Halloway, often shortened to Tom Halloway) is a fictional character, a superhero appearing in American comic books published by Marvel Comics. Created by artist Paul Gustavson and an unconfirmed writer during the Golden Age of Comic Books, the Angel first appeared in "Marvel Comics" #1 (Oct. 1939), the first publication of Marvel Comics' predecessor, Timely Comics.
Hypothesis: Tom Holloway (The Angel) first appeared in a comic book published by Marvel Comics that was previously known as Timely Comics in 1939.