Source Information

Ancestry.com. The triple semi-centennial anniversary of St. Mark's Church [database on-line]. Provo, UT: Ancestry.com Operations Inc, 2004.
Original data: The triple semi-centennial anniversary of St. Mark's Church : Bedford Avenue, Brooklyn : Rev. Samuel M. Haskins, D.D., rector, David Longworth, sexton : 1839-1889 : commemorated October 13th to October 21st, 1889.. Brooklyn, N.Y.: Printed by request, 1990.