Some history:
https://www.mg-cc.org/historySome history with more pics:
https://golfadelphia.com/2019/03/18/manufacturers-golf-and-country-club/And The charter of the Manufacturers’ Country Club was granted in Montgomery County Court on October 8,1923. The by-laws called for nine directors. The original board members were: John Fisler, George M. Bridgeman (also one of the founding members of Cedarbrook), J. D. C. Henderson, Charles J. Webb, William H. Folwell, E. A. Weihenmayer, Charles J. Miller, Fredrick M. Devlin, and Leon Goodman. The other six original subscribers were A. M. McBurney, Charles L. Gililand, Percival E. Foerderer, Edward C. Dearden, Walter D. Larzelere, and William H. Richardson. Among the prominent early members were Ellis Gimbel (Philmont’s patriarch), Jules Mastbaum (Mastbaum Theatre), John D. Shibe (Shibe Park), and George W. Sigel (center-city restaurateur and father of Helen Sigel Wilson).
Probably the first " mixed membership" club in the some of the names mentioned above with Jules Mastbaum, Ellis Gimbel & Leon Goodman.