Collection of materials from George F. Hourani, professor of Philosophy, specializing in Near Eastern History and Islamic philosophy. Includes correspondence, teachings, writings, Middle Eastern Studies research, and departmental files from both the University of Michigan and the University at Buffalo.

Collection of materials from Thomas D. Perry, professor of legal philosophy. Includes his teachings, publications, professional correspondence, and his work in the U.B. Philosophy Department.

Collection of correspondence and editorial work for the journal, The Transactions of the Charles S. Peirce Society, as maintained by UB Professor of Philosophy, Peter H. Hare, 1971-2002. Also includes some records kept by Hare from the Charles S. Peirce Society and the Society for the Advancement of American Philosophy (SAAP).