He was instrumental in the design of a number of important PRR locomotive classes, including the E6 4-4-2 "Atlantic" type, the K4s 4-6-2 "Pacific" type, and the L1s 2-8-2 "Mikado" type.
PRR S1 | PRR L1s | PRR K4s | PRR E6 | PRR GG1 | PRR MP54 | PRR E44 | PRR DD1 | PRR D6 | PRR 3750 | PRR 1361 |