John Norman, real name John Lange, was born in Chicago, Illinois in 1931. His best known works, the Gor series, currently span 36 books written 1966 (Tarnsman of Gor) to 2021 (Avengers of Gor). Three installments of the Telnarian Histories, plus three other fiction works and a non-fiction paperback. Mr. Norman is married and has three children.
I'm a big fan of John Norman. I've read all the original Gor books and 1 of the more recent plus his other series and stand-alone novels, I used to own all the physical copies with the excellent Boris Vallejo artwork. It's an acquired taste.