Materials include a twenty-four page letter written by Katherine Nagasawa Ishimoto to a "Dearest Cassie." Ishimoto discusses her conversion to and membership in the Church of Jesus Christ of Latter-day Saints, along with detailing her Church community. She tells about her family, the family business, her goals in religious worship and education, and current events, including her life in Hawaii as a Japanese citizen during World War II. Dated November 1945.