Source: Per research by 160th Battalion Facebook Group. Confirmed served with 18th Battalion..
Family Search: When Private James Whitmore Hopkins was born on 21 January 1896, in Tobermory, Bruce, Ontario, Canada, his father, James Henry Hopkins, was 34 and his mother, Martha Jane Blake, was 37. He married Vera Myrtle Cripps on 24 November 1919, in Toronto, York, Ontario, Canada. They were the parents of at least 2 sons and 2 daughters. He lived in Ontario, Canada in 1896 and Bruce, Ontario, Canada for about 10 years. He registered for military service in 1915. He died on 19 October 1975, in Owen Sound, Grey, Ontario, Canada, at the age of 79, and was buried in Scotland, Oakland, Brant, Ontario, Canada.
Owen Sound, Ontario, Canada · Wednesday, November 26, 1969.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 