RECORD: Women in Japan wearing the gauze masks (left side). Mark Humphries (of Canada’s Memorial University) unearthed records that confirm the mobilization of 94,000 Chinese laborers to work behind the British and French lines in World War I. These Chinese laborers may have been the source of the pandemic. This information was reported in 2014 by a National Geographic video. It was also reported in the Journal of War History. He states that in 1917 these northern Chinese people were shipped to England and France. They were brought to Vancouver, Canada and by train to Halifax where they embarked to England and France to work behind the lines and replace those workers who were now soldiers. While in Canada their trip was kept secret, and they were guarded and prevented from leaving the train. Humphries discovered medical records indicating that more than 3,000 of the 25,000 Chinese Labor Corps workers who were transported across Canada en route to Europe starting in 1917, ended up in medical quarantine, many with flu-like symptoms. Some of the Chinese and some of the guards came down with flu like symptoms, much like that of the epidemic known as the “Spanish Flu.” After arriving in France many went to a Chinese hospital. Hundreds of Chinese died there with respiratory illness similar to the flu.