The collection of model trains at the Mercersburg Academy has resulted from the merging of two major collections and other minor donations. The first, the John B. McFadden collection, includes many items manufactured by the Lionel Trian Company, dating from the pre - depression years to the late 1970's.
Modeled to resemble full-size railroad rolling stocks, Lionel trains are built for "o" and "O - 27" scales, two of several scales from which models railroaders may choose. "O" Scales equipment is approximately 1/48th the size of actual railroad equipment.