This collection consists mainly of old documents other than the Mitoma Papers, which were collected during the time of the former Fukuoka High School. Includes Takahashi documents (formerly owned by Takahashi Rakuchi), Eto documents (formerly owned by Eto Masazumi), Muto documents (formerly owned by Muto Naoji), Tamura documents (formerly owned by Tamura Senichiro), Fuwa documents (formerly owned by Fuwa Mitaro), etc.