In 1976 the Rev. John W. Howe was installed as rector. Under his leadership Truro continued to experience physical expansion as well as spiritual renewal. The church seating capacity was expanded by 300 through the addition of the transepts in 1983. Truro also expanded its engagement in mission around the world. Another mission church, the Church of the Epiphany, was established in Herndon, Virginia in 1985, with the Rev. Bill Reardon as rector.
