Captain America - A Freemason?
The Ultimates #7: Cap (Steven Rogers) is chatting with his old sidekick (who has grown old, while Cap has been frozen). Bucky says, "So why don't you come down to The Lodge on Friday? You remember Donnie Hudson? He's seventy-five this weekend and all the old crowd are throwing him a roast." Gail interrupts, "Oh, never mind about all those silly aprons and secret handshakes, Steve."