Brand-new Milwaukee Road class A 4-4-2 Atlantic-type No. 4 stands for a portrait at the road’s West Milwaukee Shops on Sept. 15, 1937. Alco built class As Nos. 1 and 2 in 1935, No. 3 in 1936, and No.

“Pittsburgh made it very clear that in no way the Pennsylvania Railroad was going to bring steam locomotives into the city anymore.” Switching to diesel locomotives saved the Pennsylvania ...