Malachi “False Face” Throne had, according to the New York Times, “attended Brooklyn College, served in the Army during the Korean War and acted on Broadway”.

Wikipedia says that Art Carney “was drafted into the United States Army as an infantryman and machine gun crewman during World War II. During the Battle of Normandy serving in the 28th Infantry Division, he was wounded in the leg by shrapnel and walked with a limp for the rest of his life.”

This is a tough question. My preference is that she doesn't have one. I prefer to think of her like I do Batman; someone who has honed her natural abilities to an astounding level. That makes her seem more realistic and inherently more dangerous to me. If she isn't super then there could be a Siren...