This book project focuses on a history of religion and sex/sexuality in Japanese American communities during the 1920s and 1930s. The first chapter will explore how the Young Women’s Christian Associations and the Japanese Christian Student Associations collaborated with the social hygiene movement to shape sexual mores among Japanese American women. Drawing from archival research on digitized Rafu Shimpo at the Hoover Institution Archives, the digitized YWCA of the USA records at Smith College, and the digitized Social Hygiene Association records through the University of Minnesota.