Jim,
I think a lot of the early members were like me and participated in the old Farmall Cub Internet discussion board, which was part of the Antique Tractor internet Service (ATIS. Net). I do not remember why, but that internet site was discontinued or shut down. Shortly after that FarmallCub.com was formed, and So there was a lot of initial interest from the ATIS membership.
I’m sure others like Dennis will respond with more information and facts, but that is an excellent question for a new thread. There may be something in the board index that provides a history, but I did not see anything.