On May 30, 1920, Lady Gage unveiled a bronze tablet honouring Trinity Methodist Church parishioners who served in the First World War. The tablet, located on the southwest wall, is made of bronze and brass of the early Norman Gothic design and made in triple arch style. It weighs 400 pounds, is seven feet wide and five feet high. The center arch contains the names of the 28 members of the church who gave their lives in the war. The 258 members of the church whose names appear on the tablet represent 141 families of the congregation.
Trinity Methodist Church was located at the corner of Bloor and Robert Streets. It joined the United Church in 1925. The St. Paul's United congregation moved into the Trinity United building in 1980. The two congregations were not formally united on May 30, 1982, when the inaugural worship service was held for the newly formed Trinity-St. Paul's United congregation. The tablet, originally in the Trinity-St. Paul's United Church sanctuary, is now mounted on the south corridor wall.