- Name
- Sen Katayama
- Born
- 1859, Hadeki district (later Okayama prefecture), Japan; exact day and month unknown
- Died
- 5 November 1933, Soviet Union; exact place unknown
- Aliases
- Sugataro Yabuki; Katayama Sen; Sen Katayama (printed signature)
- Position in 1919–1920
- Japanese socialist and communist organizer and journalist, active in the United States
- Affiliations
- Japanese socialist movement; American communist movement; subsequently Communist International
- Council delegate
- unknown
- Bio
- Katayama combined journalism, labor organization and opposition to Japanese militarism. After imprisonment connected with the Tokyo streetcar strike, he returned to the United States and subsequently embraced communism. He was involved in the founding of the American and Japanese communist movements. In 1921 he worked for the Communist International in Mexico and then moved to Moscow.
- Articles
- 1
Indexed full catalog cards · Issues I.1, I.2, I.3, I.4, I.5, I.6, I.7, I.8, I.9, I.10, I.11, I.12, I.13, I.14, I.15, I.16, I.17, I.18, I.19, I.20, I.21, I.22, I.23, I.24, I.25, I.26, I.27, I.28, I.29, I.30, I.31, I.32, I.33, I.34, I.35, I.36, I.37, I.38, I.39, I.40, I.41, I.42, I.43, II.1, II.2, II.3, II.4, II.5, II.6. Coauthored cards count once for each named author. Serialized installments are counted as separate issue cards.
- Brief records / quotations
- 0 · Separate from the Articles count.
- Other Notes
- The Japanese Communist Party and his Comintern work belong to a later stage than this 1919 contribution; they are not projected backward as existing 1919 positions. The source consulted establishes the death date and country but does not explicitly state the city of death. No elected factory-council mandate has been established.
L’Ordine Nuovo / Contributor
Sen Katayama
Sources
Biographical research checked 2026-10-07. Printed signatures and contribution details follow the indexed facsimiles and the catalog’s attribution notes. “unknown” means not securely established; advocacy of councils does not establish service as an elected delegate.