Did any US Presidents have tattoos?

Answer 1

Yes. Franklin Pierce had full sleeves depicting Greek mythological figures fighting dragons. He had an affinity for both Greek mythology and Asian cultures, so he let his brother-in-law, Obadiah Appleton practice his new trade. Unfortunately for Pierce, Obadiah's tattoo work was as bad as his previous career as a failed wagon builder. Pierce therefore always wore sleeves and threatened the life of anyone making a portrait if they even suggested depicting the tattoos.

Also, Dwight Eisenhower has an ace of spades on his right butt cheek.