NoMan, the oldest superhero?

[Aaron Kashtan]

According to T.H.U.N.D.E.R. Agents #3, Dr. Anthony Dunn became NoMan at the age of 76.

Is there any other character who became a superhero at such an advanced age, without being an immortal or a member of an unusually long-lived species or something?

[spoon_jenkins]

In Wonder Man's solo series, he started radiating "ionic energy", which had the side effect of giving various super-powers to members of his supporting cast. The supporting cast member formed a super-team called the Crazy 8. (http://www.comics.org/coverview.lasso?id=132574&zoom=4) Wonder Man's landlady was a member of the team under the name Glamour Girl. She was a senior citizen, but I don't think her exact age was mentioned.

[Alan2099]

Does Aunt May as Golden Oldie count? If not, what about that time she helped invade Doom's caslte in an old Ironman suit?

[zilch]

The Gargoyle was a WW I vet who sold his soul to save his dying town. He would have been in his 70s or 80s when this happened.

[Captain Jim]

I always liked NoMan. One of very few truly orginal heroes, I think (and the only really original hero in the THUNDER Agents).

[foxley]

Centennial, from the shortlived reboot of Alpha Flight , developed his superpowers after being awoken from a coma at the age of 97.