 Several private schools exist in Galveston . The Roman Catholic Archdiocese of Galveston @-@ Houston operates two Roman Catholic private schools , including Holy Family Catholic School ( K through 8th ) and O 'Connell College Preparatory School ( 9 @-@ 12 ) . Other private schools include <unk> Elementary School , Trinity Episcopal School , Seaside Christian Academy , and Heritage Christian Academy . 
