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In page Cathedral of Saint Patrick (Charlotte, North Carolina):

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What was once the O'Donoghue School in Charlotte, NC is the oldest privately conducted school in Charlotte. O'Donoghue School was established on August 27, 1887, by the Sisters of Mercy, a Roman Catholic religious order, as St. Mary's Seminary. The name was changed in 1905 to honor Dr. Dennis O'Donoghue, whose bequest made possible the large building at 531 South Tryon Street, home of the school for many years. in 1930, Father Michael McInerney designed a parochial school to be built of granite and cost $90,000. The O'Donoghue School was moved to 1125 Buchanan Street in Dilworth neighborhood in 1930. Its imposing stone building is now St. Patrick Catholic School, the oldest Catholic school operating in the Charlotte area.