USS San Marcos (LSD-25)
USS San Marcos (LSD-25) was a Casa Grande-class dock landing ship of the United States Navy, named for the Castillo de San Marcos, the oldest masonry fort still standing in the United States. In 1911, the second-class battleship Texas had also briefly borne the name San Marcos, perhaps for the town of San Marcos, Texas.
Read more about USS San Marcos (LSD-25): U.S. Navy Career, Spanish Navy Career