My paternal Granddad was a conductor on the northeast Iowa electric road WCF&N for nearly four decades. As a small fry, as I recall anyway, at his home I flipped through many railroad industry magazines, mags that were large format, similar in size to Look and Life magazines of the era.
I do not recall the names of any of these publications but am hoping someone here might recall titles. I wonder if one of them wasn't an AAR publication. . . .