Who was the train dispatcher who sent a warning message to another passenger train in the December 6, 1917 Halifax maritime disaster?
Halifax Explosion The Halifax Explosion was a maritime disaster in Halifax, Nova Scotia, Canada, on the morning of 6 December 1917.  , a French cargo ship laden with high explosives, collided with the Norwegian vessel  in the Narrows, a strait connecting the upper Halifax Harbour to Bedford Basin. A fire on board the French ship ignited her cargo, causing a large explosion that devastated the Richmond district of Halifax. Approximately 2,000 people were killed by blast, debris, fires and collapsed buildings, and an estimated 9,000 others were injured. The blast was the largest man-made explosion prior to the development of nuclear weapons, releasing the equivalent energy of roughly 2.9 kilotons of TNT.
Harold Cottam Harold Thomas Cottam (27 January 1891 – 30 May 1984) was the wireless operator on the RMS "Carpathia" when the SOS from the sinking RMS "Titanic" was sent. It was also he who awakened Captain Arthur Henry Rostron after receiving the distress signal. Without his diligence, and the somewhat fortuitous circumstances, many more people might have died in the "Titanic" disaster. Cottam was off duty and about to go to bed, but he left the radio on and listened to the news from Cape Cod. He heard Cape Cod advise that they had private traffic for the "Titanic" and thought it would be helpful to inform the "Titanic" of this. In reply he received Jack Phillips's SOS call.