Before the bombing of Pearl Harbor, Tai Shigaki had already transferred from Los Angeles City College to the University of Redlands, in response to fears that Japanese Americans would be restricted from coastal areas as tensions with Japan grew. She was incarcerated at Poston before being accepted at Dennison University, where she majored in religious education. Following the war Shigaki completed a graduate degree in religious education, and later a second graduate degree in social work from the University of Minnesota; she worked in community services in Minneapolis, with the YWCA, and as an administrator with the Minnesota Department of Corrections.