Source: April 1917 casualty.
Family Search: When Private Stephen Bradbury was born on 25 March 1892, in Stoke-on-Trent, Staffordshire, England, United Kingdom, his father, Thomas Edward Bradbury, was 31 and his mother, Emma Cheadle, was 34. He immigrated to Canada in 1913 and lived in Staffordshire, England, United Kingdom in 1901. He registered for military service in 1915. In 1915, at the age of 23, his occupation is listed as teamster. He died on 9 April 1917, in Thélus, Pas-de-Calais, France, at the age of 25, and was buried in Vimy, Pas-de-Calais, France.
History of the 18th Battalion CEF, "The Fighting Eighteenth" 