Alexander had previously served as a volunteer in the Argyll and Sutherland Highlanders. He enlisted into the R.A.M.C., Territorial Force on 9th September 1914. He was 28 years and 4 months old; was a Machinist by trade, working for Singer Manufacturing Company Limited; and was living in Stirling at the time. On 5th June 1915, he left the UK to serve with the Mediterranean Expeditionary Force - entering the war in Egypt on the 16th June. Alexander died of enteric fever on board H.M.H.S. 'Itonus' and was buried at sea. He was the husband of Janet Brown of 9 Second Terrace, Clydebank.