Mount Pleasant was one of the first schools built following the passing of the free school law of 1829. On September 22, 1830, Joseph Orr sold a lot to the School Committee of School District #2 (note: School District #1 was Naamans Creek, now the Claymont Stone School). The original Mount Pleasant schoolhouse still stands today, located on an acre of land which is now part of Bellevue State Park. When William DuPont Jr. remodeled Woolton Hall, now called the Bellevue Mansion, he also changed the exterior of the Mount Pleasant schoolhouse from stone to its present Colonial Revival style.