From the introduction: Welcome to Organizations, Agencies and Secret Societies, a supplement for the 1948 Campaign Setting. This file contains nearly 50 unique organizations, government agencies, and political ideologies that are prevalent in most early 20th century RPGs. If you are not planning to use this supplement with the 1948 Campaign Setting, feel free to modify or adjust these groups to fit your particular style of game. If you plan to use this supplement with the 1948 setting, understand that these are merely descriptions of allegiances that the players can select for their characters. This is essentially “player information.” More campaign oriented information for the Game Master regarding some of these groups will be included in forthcoming files.