Board Thread:Questions and Answers/@comment-24520051-20161120235846/@comment-1257201-20161128071921

Yes. Dr. Occult (10/1935), Speed Saunders (3/1937), and Slam Bradley (3/1937) all pre-date Superman and were still active in the early 2000s. Occult's wife Rose Psychic also pre-dates Superman (nobody is sure when she first appeared), but she died in 1995. I don't know of any others.

Kyle, you replied first, so it's your turn!