Founded by Tragedy (after being coaxed heavily by Forte) to archive important historical documents from the various districts of Hereafter. Each district has one location with varying degrees of usage, usually functioning as a fancy library. Every month, the members of the association in a particular district meet up to discuss and share whatever the found and managed to archive, occasionally voting to send off particularly important objects to the main building in Hereafter City.
Each district has at least one lead archivist that manages operations relevant to that district, with the entire association being managed by a couple overseers who seem to genuinely enjoy what they're doing (which is a shock as the previous overseers weren't very enthusiastic about the association...but then again, they weren't made for managing it.)