1899 Feb/Mar . Born Wexford
1901 census at Anne Street, Wexford Town, Wexford, Ireland
1911 census. A boarder at Masonic Boys school in Dublin - 117 Roebuck, Dundrum, Dublin. His father has died, and his mother is a caretaker in Wexford.
1917 Mar 1. Commissioned 2nd Lt in R Munster Fus
1918 Sep 1. Promoted Lt
1920 Sep 1. Gazetted out 4th RMF as Lt.
1921 Jan 31. Joined ADRIC with service no 1616. Posted to N Coy.
1921 Feb 19. Posted to I Coy
1921 May 28 Posted to Z Coy.
1922 Jan. I assume he served till demobilisation
1923 Feb 2. Living in Belfast when he applies for his medals
1931 Jan 10. Hastings Observer shows him as a witness in a minor road accident claim
1939 Sep 3. Gazetted Lt - Lt Arthur Walker SEMPLE (139439)
1940 Jul 15. Transferred to Intelligence Corps