schools Holy Savior Menard Central High School, Alexandria St. Joseph High School, Plaucheville St. Mary's High School, Natchitoches See also namesake Roman Catholic Diocese of Alexandria-Cornwall in Ontario, Canada List of Catholic dioceses in the United States References Sources and external links GCatholic, with Google map and satellite photo - data for most sections Roman Catholic Diocese of Alexandria Official Site 1853 establishments in Louisiana Religious organizations established in 1853 Roman Catholic dioceses and prelatures established in the 19th century Roman Catholic dioceses in the United States Roman Catholic Ecclesiastical Province of New Orleans