Source: Post by Allan Miller at 18th Battalion Facebook Group.
Find-A-Grave
Family Search: When Bertram John Cooper was born on 22 January 1885, in Wyverstone, Suffolk, England, United Kingdom, his father, Harry Cooper, was 25 and his mother, Ellen Jane Aldridge, was 23. He married Hannah James on 25 December 1907, in Canning Town, Essex, England, United Kingdom. They were the parents of at least 1 son and 2 daughters. He immigrated to Detroit, Wayne, Michigan, United States in 1923 and lived in West Ham, Essex, England, United Kingdom in 1911 and Blenheim, Chatham-Kent, Ontario, Canada in 1916. He registered for military service in 1916. In 1916, at the age of 31, his occupation is listed as section man in Blenheim, Chatham-Kent, Ontario, Canada. He died on 17 April 1952, in River Rouge, Wayne, Michigan, United States, at the age of 67, and was buried in Woodmere Cemetery, Detroit, Wayne, Michigan, United States.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 