Prior to 1930, most of the people who lived inSt. Mary’s County worked as watermen and farmers. To work in those professions there was no need for a formal education. At that time, St. Mary’s County was predominantly Catholic. All the schools were either Catholic or private because there was no public education. There was a white Catholic high school and a black Catholic high school, the Cardinal Gibbons Institute. There were two private secular high schools, the Charlotte Hall Military Academy and Leonardtown Hall.