These are questions about the the days of telegraph only. If a train derailed and took out the telegraph line, how did communications get from dispatcher to operators on the other side of the wreck? Could the railroad get connecting RR's to instantaneously rig a dedicated line for them? Did the RR have to use Western Union? If Western Union, were there priority messages in the 1890's? Did the DS orders go through Western Union, or were they copied and repeated by a Western Union man?