Years ago, in the Hoosier Line, there was an article about Howard Fogg. He painted the Limedale picture and JWB wanted to give some other "originals" away for public relations. Howard Fogg painted duplicates, so there were differences between pictures and that was probably one of the diffenences.
The Monon had some of the 70 class freights named Lew Wallace, Ben Hur, etc. I don't remember which name went to which train.