Source: SS Caronia Passenger Manifest. 1919.
Family Search: When Private William Arthur Edmondson was born on 25 May 1872, in Toronto, Ontario, Canada, his father, William Henry Edmondson, was 30 and his mother, Martha Elizabeth Adams, was 21. He married Margaret Edna Drummond on 16 December 1903, in York Township, Toronto, Ontario, Canada. They were the parents of at least 2 sons and 2 daughters. He died on 6 August 1941, in Toronto, Ontario, Canada, at the age of 69, and was buried in Prospect Cemetery, Toronto, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 