Source: 18th Battalion Nominal Roll, April 1915.
Family Search: David Llewellyen Prosser was born on 22 March 1892, in Wattstown, Glamorgan, Wales, United Kingdom. He married Eva Gold on 1 March 1919, in Kensington, London, England, United Kingdom. They were the parents of at least 3 sons and 1 daughter. He lived in London, Ontario, Canada in 1921. He registered for military service in 1914. In 1914, at the age of 22, his occupation is listed as labourer. He died on 23 April 1967, in Hamilton, Ontario, Canada, at the age of 75, and was buried in Eastlawn Cemetery, Hamilton, Ontario, Canada.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 