[3] Onuma's photographs taken during the pre-World War II period and preserved in the GLBT Historical Society tell us about some aspects of his and his bachelor Japanese American friends' lives from the early 1920s to the 1930s.
[1] The archival materials also show that Onuma collected male fitness magazines and was a fan of 1920s and 1930s pioneer bodybuilder and trainer Earle E.
[1] Onuma's passport shows that he briefly visited Japan and returned to San Francisco on January 29, 1936, on the Asama Maru (浅間丸).
In accordance with his will, half of his estate was donated to Kimochi, Inc. in San Francisco, a nonprofit organization providing care for seniors in the Japanese American community.
[1] Onuma's archive, held by the GLBT Historical Society in San Francisco, consists of two photo albums, identity documents, a fitness magazine, unused postcards, pens, tiepins, and other personal belongings of his.
In 2009, the GLBT Historical Society's first artist-in-residence, E.G. Crichton, hosted an event and exhibition titled LINEAGE: Matchmaking in the Archive.