Francis Esmond Reynolds was appointed Senior Medical Officer in China, he returned to Europe in 1914 and attained the rank of Captain in the Yorkshire Hussars which was an auxiliary unit of the British army.
In 1913 he was appointed Senior Medical Officer, Taheiho in China, and joined the Manchurian Plague Prevention Service in May, 1913, to commence work as Bacteriologist, stationed at Harbin. He resigned in December 1914, to return to Europe to join the armed forces. He attained the rank of Captain in the Yorkshire Hussars and Royal Army Medical Corps during the First World War, serving in Salonika, the Caucasus, and Asia Minor with the 27th Division. The Yorkshire Hussars (Alexandra, Princess of Wales's Own) was an auxiliary unit of the British Army formed in 1794. 
