Source: SS Caronia Passenger Manifest. 1919.
Family Search: When Private Roy Birrell was born on 12 August 1894, in London, Ontario, Canada, his father, Robert M Birrell, was 32 and his mother, Rachel Parr, was 37. He married Adeline Birrell on 12 December 1924, in London, Canada West, British Colonial America. They were the parents of at least 2 sons. He immigrated to Vermont, United States in 1920 and lived in London, Canada West, British Colonial America for about 10 years. He registered for military service in 1915. In 1924, at the age of 30, his occupation is listed as pharmiscist in London, Ontario, Canada. He died in 1975, at the age of 81, and was buried in Greenlawn Memorial Gardens, Oldcastle, Essex, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 