Horatio Southgate, a Portland native who had served as the Episcopal Missionary Bishop to Constantinople.

[1] Its first church building was built on Congress Street near Longfellow Square in the city's West End.

By 1866 St. Luke's had grown to be the largest parish in the state and it was chosen to be the cathedral church for the diocese.

[2] The Gothic Revival style structure was designed by New York architect Charles Coolidge Haight.

[1] Media related to Cathedral Church of St. Luke (Portland, Maine) at Wikimedia Commons