Viglielmo also developed a close connection with the Japanese anti-nuclear group Gensuikin (Congress for the Abolition of Atomic and Hydrogen Bombs), and especially with the Nagasaki branch. He and his wife, Frances, were instrumental in facilitating the erection in 1990 of the Nagasaki Peace Bell in Honolulu, the funding for which came from the survivors of the Nagasaki atomic bombing and their relatives and friends. In the summer of 1998 Viglielmo and his wife were invited to Nagasaki to receive a Peace Prize in honor of their work in the anti-nuclear movement. In Honolulu they were granted the Peacemaker of the Year Award in 1988 by the Church of the Crossroads.