In the Film, and in the comic, there are pics of seveal prior Leagues. Anyone here figure out who they all are? 
The 18th century League from the comics:
The Reverend Doctor Syn (AKA, the Scarecrow).
Lemuel Gulliver.
The Scarlet Pimpernel (and wife).
Natty Bumpo (‘Hawkeye’).
Fanny Hill.
Information on Rev. Dr. Syn, and a picture of his League here.
Also:
This site, has a number of previous Leagues - in some cases directly lifted from references in the comics, sometimes speculation.