 Started in 1960 by Dr. William G. Moser, who served as the district's first superintendent, the district was carved out of the nearby present-day Chester-Upland School District and was instrumental for the building of the Sun Valley Senior High School and administration building on land donated by the Sun Oil Company (now Sunoco).In addition to the regular curriculum, in 1976, the U.S. Marine Corps Jr. ROTC (MCJROTC) program was offered for the first time and was only one of three MCJROTC units in the Delaware Valley area – the others being in nearby Chester City and in Bensalem.Currently, the Penn-Delco School District operates the following schools