About Holy Trinity Greek Orthodox Church. Holy Trinity Greek Orthodox Church (“HTGOC”) in Dallas, Texas is a member Church of the Greek Orthodox Archdiocese of America and the Greek Orthodox Metropolis of Denver as well as the Patriarchate of Constantinople. HTGOC was established in Dallas, Texas in 1915 and has been physically located in three primary locations during its history. The Church’s permanent location was opened in early 1993 at the c...
