Breaking News, History, People, Remember when Remember When: Cardinal Gibbons High School was the Catholic school for colored students in St. Mary’s County Posted onMay 9, 2019May 10, 2019 Cardinal Gibbons Institute, Ridge, Maryland was a Colored Catholic School in St. Mary’s County. The Cardinal Gibbons Institute was St. Mary’s County’s first high school … Share this: Click to share on Facebook (Opens in new window) Facebook Click to share on X (Opens in new window) X Click to share on LinkedIn (Opens in new window) LinkedIn Click to email a link to a friend (Opens in new window) Email Like this:Like Loading...