The radio operators, signalmen, and quartermasters were assigned to the ninth division. Of the crew, 29 men, seven gunners, and two naval signalmen were killed. When there is danger, his fellow signalmen alert him by telegraph and alarms. The SVR trains new signalmen at the Kidderminster Signalling School, located above the carriage works. See Signaller for more about the roles of Signalmen. The jury did not find any negligence by either signalmen Killick or Brown. Usually no communication with other signalmen is needed for movements within station limits. In 1994 he led a strike of signalmen which resulted in substantial pay increases. This makes traffic regulation much easier for signalmen to handle among themselves. In 1916, the first signalmen equipped with mobile radios were operating on the front line. The signalmen were used to maintain communications between troop columns. The signalmen were powerless to stop the trains. Signalmen have a worn rank of Private. A line of railway is controlled by signalmen in a series of signal boxes. The signalmen at Gretna Junction would let Tinsley know when this was to occur.