Over time it became evident that the core members and direction of the group was towards the professional developers' side and the name was changed from Users to Developers, although any given meeting may have people from all ranges of expertise and backgrounds.
Exact history is a little cloudy, but core of the group began with developers Tim Neudecker, Tim Brown and Steven Scharf. By the time Scharf moved to Maine some years ago, an active culture had taken hold, held together and supported by perhaps ten or fifteen central members.
A given meeting of the Developer Group usually varies around twenty or so people, though at times twice that number has shown up. The central feature of the organization is knowledge sharing and problem solving among and for members.