Source: Via family member’s reply to a post at London & Middlesex Branch – Ontario Ancestors Facebook Group.
Family Search: When Harrison Glendon Williams was born on 18 January 1891, in Dover, Kent, Ontario, Canada, his father, Robert D. Williams, was 30 and his mother, Amarilla S. Ruhnke, was 25. He married Mary Ethelda Rovena Beno on 11 June 1919, in Tilbury, Kent, Ontario, Canada. They were the parents of at least 1 son. He lived in Ontario, Canada in 1891 and Kent, Ontario, Canada for about 10 years. He died on 14 June 1942, at the age of 51, and was buried in Stewart Cemetery, Chatham-Kent, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 