My great, great uncle Robert F. McKee, Sr., was a design engineer at Baldwin Locomotive Works and he would give my father different Baldwin Locomotive builder's cards when my father would visit him in Collingswood, New Jersey. Here is a beautiful engine he helped design, the T-1 class 4-8-4 for the Lehigh Valley Railroad. Note the side rod on the back tender truck. This Baldwin Locomotive Works builders photo card is from the John R. Doughty collection.
Dedicated to my father, John R. Doughty, Sr., and to his great uncle, Robert F. McKee, Sr., who worked at the Baldwin Locomotive Works as a senior design engineer, including working on the design for the Duluth, Missabe & Iron Range 2-8-8-4 Yellowstones