Joined Mighty Crusaders:
The Marvel is not a member of the Mighty Crusaders.
Blue Ribbon Comics #2, January 1940
When Scoop Cody would get in trouble covering a story, the Marvel would show up to rescue him. While each episode promised to reveal who the Marvel was next month, they never did.
Powers & Weapons:
The Marvel has no superhuman powers but does possess superior skill with both in hand-to-hand combat and with a gun.
Blue Ribbon Comics 2-3