For example, electricity makes the producers of Kerosene lamp unemployed, but it gives rise to jobs such as telegrapher, bulb maker, etc., etc.. (politics.stackexchange.com)
Crush was in touch with the engineers through telegraphers, one on the ground beside each engine. (si.com)
«The data rate is not much different from what a skilled 19th - century telegrapher could do,» says Morrison. (newscientist.com)