Source: April 1917 casualty.
Family Search: When Private George Colter was born on 4 April 1883, in Petrolia, Lambton, Ontario, Canada, his father, John Coulter, was 49 and his mother, Mary C. Mark, was 43. He lived in York, Ontario, Canada in 1901 and Ransom, North Dakota, United States in 1910. He registered for military service in 1915. In 1916, at the age of 33, his occupation is listed as farmer in Petrolia, Lambton, Ontario, Canada. He died on 12 April 1917, in Thélus, Pas-de-Calais, Nord-Pas-de-Calais, France, at the age of 34, and was buried in Liévin, Pas-de-Calais, Nord-Pas-de-Calais, France.
This native of Petrolia, Ontario enlisted on December 27, 1915, at Petrolia with the 70th Battalion. He was a 32-year-old single farmer with no military experience.
He left Canada on April 24, 1916, and the trip from Halifax to Liverpool arrived May 5, 1916. HE was then transferred to the 39th Battalion July 10, 1916. Less than a month later he was transferred to the 18th Battalion for active service, arriving August 21, 1916.
Surviving the hell of the Somme, where he was posted missing and later returned to his unit, and participating in the opening of the Vimy Campaign on April 9, 1917 he was killed in action on April 12, 1917.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 