Steve and Joan Troutman have collected the histories and photographs of the various one-room schoolhouse of the Mahantongo Valley, of Northumberland and Schuylkill Counties, Pennsylvania, including many pictures of students, teachers, and artifacts:
Union School
Forest School
Grove School
Hebe School
Nobel (Rothermel's) School
Linden School
Urban School
Dubendorf (Gap) School
Troutman School
Paul's School
Stein's School
Fetterolf School
Delb-Delp School
Zerfing's School