Gruber was one of the founding members of the Mattachine Society, a homophile organization. The papers contain letters, clipped news items, draft writings and photographs.
![[House at 11334 Cecilia Street in Norwalk]](https://digitalsf.org/sites/default/files/styles/enhanced_grid_small/public/externals/c384e066a1ece4011f3492b4314395d9.jpg?itok=PU4lvpQQ&pid=islandora:155207&iic=true)
![[James Finley Gruber, Jr. and Konrad Stevens, Glendale]](https://digitalsf.org/sites/default/files/styles/enhanced_grid_small/public/externals/33f728befa7029a9aaac18408935f594.jpg?itok=IzVBQJii&pid=islandora:155203&iic=true)
![[James Finley Gruber, Jr. at 23]](https://digitalsf.org/sites/default/files/styles/enhanced_grid_small/public/externals/9b30fceba56a33bacf2cff50ba07c79e.jpg?itok=f7X_xa_O&pid=islandora:155204&iic=true)
![[Pat at slots in Nevada Club of Las Vegas]](https://digitalsf.org/sites/default/files/styles/enhanced_grid_small/public/externals/3bf61e5d26a4ae40740a9ef5671ae880.jpg?itok=Edyi_Zwt&pid=islandora:155208&iic=true)
![[Stan Witt at Nevada Club of Las Vegas]](https://digitalsf.org/sites/default/files/styles/enhanced_grid_small/public/externals/bcb81a9b007bc9a317620599ecd51988.jpg?itok=vvOWwBEp&pid=islandora:155206&iic=true)
