In 1907, after completing a course of study in dentistry at the College of Physicians and Surgeons in San Francisco, Shuichi Tatsuguchi returned to Hiroshima with plans to serve as a medical missionary.
Pada tahun 1907, setelah menyelesaikan program studi kedokteran gigi di College of Physicians and Surgeons di San Francisco, Suichi Tatsuguchi kembali ke Hiroshima untuk berdinas sebagai misionaris medis.