Source: The Daily Telegraph and The Sun, Saint John, New Brunswick 1916-03-14. Page 2.
Family Search: When John Gillespie McCausland was born on 29 June 1883, in St. Thomas, Ontario, Canada, his father, John McCausland, was 54 and his mother, Mary Agnes Wrong, was 34. He lived in Elgin, Ontario, Canada in 1901. He registered for military service in 1914. In 1914, at the age of 31, his occupation is listed as sailor. He died on 14 February 1963, in St. Thomas, Ontario, Canada, at the age of 79, and was buried in Luton Cemetery, Malahide Township, Elgin, Ontario, Canada.
ELGIN TREASURER”S SON IS REPORTED WOUNDED
[Special to The Advertiser.]
ST. THOMAS, March 12. – John McCausland, former Elgin county treasurer, of Metcalfe street, received a telegram from the adjutant-general at Ottawa today, stating that his son, Pte. John McCausland, of the 18th Battalion, had been wounded in the fighting in France, and was at No. 2 Hospital. Boulogne. Pte. McCausland has two brothers with the Canadians at the front.
Source: The London Advertiser. March 14, 1916. Contributed by Allan Miller of the Facebook Group “149th Battalion CEF – Lambton’s Own“
History of the 18th Battalion CEF, "The Fighting Eighteenth" 