Once again, history anonymizes. I don’t know who they were or where they were (or, for that matter, whether they took turns posing with the same fish!), but their pride and satisfaction in the day’s “work” remains clear.
Without a date, it’s hard to know if this train belonged to the Old Colony Rail Road, or the Old Colony and Fall River, or the Old Colony and Newport (you can imagine that Fall River was a little peeved when that happened), or the New York, New Haven and Hartford, or some other corporate conglomerate name for the railroad that ran through Kingston starting in 1845. It is the bridge that crosses the Jones River, so it is at least fixed in place.