Source: April 1917 casualty.
Family Search: When Private Charles Duncan Compton was born on 21 December 1899, in Ripon, North Yorkshire, England, United Kingdom, his father, Charles Compton, was 32 and his mother, Susannah Winter, was 28. He immigrated to Toronto, York, Ontario, Canada in 1914 and lived in Littlethorpe, Yorkshire, England, United Kingdom in 1911 and Toronto, York, Ontario, Canada in 1915. He registered for military service in 1915. In 1915, at the age of 16, his occupation is listed as farmer. He died on 9 April 1917, in Thélus, Pas-de-Calais, France, at the age of 17, and was buried in Vimy, Pas-de-Calais, France.
This soldier was underage and had a brother, Private Harold Compton, reg. no. 201344, of the 60th Battalion, who was killed in action on November 26, 1916.
SECOND BROTHER KILLED
Star Reporter Breaks the News of Boy’s Death to MotherNo telegram brought the news to 696 Ashdale avenue that Pte. Chas. D. Compton had been killed in action April 19, and the family was not aware of the until a Star reporter called. The sad news was a second blow to the family, as their other son, Harold, 19 years old was killed.
“Why, what is the news?” asked the mother wen The Star reporter called. “Is he killed?” The news was then told Mr. Compton. Pte. Charles Compton was only 16 years of age when he enlisted with the “Pals” Battalion. He trained with that unit at Camp Borden and went overseas in August last. In a letter received from him only a week ago he stated he was quite well, but having a rough time of it, being up to his waist in mud and water. The family formerly lived in Ripon, Yorkshire, England and came to England three years ago.
Source: Toronto Star – May 3, 1917
History of the 18th Battalion CEF, "The Fighting Eighteenth" 