Source: SS Caronia Passenger Manifest. 1919.
Family Search: When Private Clinton James Ketchen was born on 29 September 1898, in Seymour Township, Northumberland, Ontario, Canada, his father, James Whitton Ketchen, was 25 and his mother, Saburn Mintie, was 28. He married Opal Ketchen on 31 March 1929, in St. Joseph, Indiana, United States. He immigrated to Detroit, Wayne, Michigan, United States in 1931 and lived in Mishawaka, Penn Township, St. Joseph, Indiana, United States in 1930 and South Bend, St. Joseph, Indiana, United States for about 10 years. In 1950, at the age of 52, his occupation is listed as executive. He died on 18 June 1986, in Broward, Florida, United States, at the age of 87.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 