National Railway Museum York England has currently a show on railway posters -suggest you contact Beverly Cole the organiser.(NRM has lots of ephemera and railway goodies,but no ref to black workers-our railways were mostly built by Irish 'navvies',tho I'm sure the same kind of issues arise-maybe skin colour is not the issue here. And at the risk of betraying the fact that my understanding of american railway history is derived mainly from Kung fu movies -weren't yours built by chinese and european emigrant workers?) -- david franklin National Museum of Photography,Film and Television [log in to unmask]