For anyone interested, Mighty Mouse is one of those old-time characters that has mostly faded from memory. He started as an animation character that primarily was a take-off on the popularity of Superman. In the earliest appearance, he was even called "Super Mouse" and his costume used the same colors. That eventually changed.
Thanks to Wikipedia, here is some information about Mighty Mouse appearing in comics:
Mighty Mouse's first comic book appearance was in Terry-Toons Comics #38 (November 1945), published by Timely Comics.[17]
Terry-Toons Comics #38–85 (1945–1951)
Paul Terry's Comics #86–125 (1951–1955)
Timely Comics #1–4 (1946)
St. John Publications #5–67 (1947–1955)
Pines Comics #68–83 (1956–1959)
Dell Comics #144–155 (1959–1961)
Gold Key Comics #156–160 (1962–1963)
Dell Comics #161–172 (1964–1968)
Mighty Mouse, Spotlight Comics, #1–2 (1987)
Mighty Mouse, Marvel Comics, #1–10 (1990)
Mighty Mouse, Dynamite Entertainment, #1-5
