Z
Zamac	Trade name for zinc-aluminum alloy die-casting metal used widely for pressure die-casting in model trains.
Zoo Keeper	Gate tender at a passenger station.
Zulu	Emigrant family with its household goods and farm equipment traveling by rail; sometimes included even livestock crowded into the same boxcar. Zulu can mean only the car, or the car and all its contents. This method of travel was not uncommon in homesteading days on Western prairies. Origin of term is obscure. May have some connection with the fact that European homesteaders in Africa fled in overfilled farm wagons before Zulu marauders.