Source: Service record of promotion of CSM Charles Green.
Family Search: Second Lieutenant David Cole was born on 15 January 1888, in London, England, United Kingdom as the son of John R. Cole. He registered for military service in 1914. In 1914, at the age of 26, his occupation is listed as engineer. He died on 3 July 1916, in Somme, France, at the age of 28, and was buried in Mesnil-Martinsart, Somme, Hauts-de-France, France.
Served in the Ohio National Guard for 6 months. Later transferred to the Imperial Forces in the 16th Battalion, Royal Irish Rifles with a commission.
Born U.S.A.?
History of the 18th Battalion CEF, "The Fighting Eighteenth" 