1873 Born Dublin , Ireland (RIC reg gives Dublin, but I cannot get a birth entry in Irish GRO)
1891 census A private in the army at Weymouth, Dorset. Born Ireland
1911 census with 2nd Batt: North Staffordshire Regt, at Peshawar, North West Frontier Provinces, India. A Married Colour Sergeant. He is down as born Dublin
1914 Nov 30 Landed in France
1916 Dec 13. N. Staff. Reg.—The undermentioned Wt. and N.C.O.'s to be 2nd Lts. : — Qr.-Mr.-Serjt. James Munn.
1917 Jun 5. 2nd Lt to be temp Lt while holding the position of Adjutant. J. Munn, N. Staff. R.
1920 Feb 19. N. Staff.. R.—Lt. J. Munn having reached the age fixed for compulsory retirement, is placed on ret. pay.
1920 Oct 30. Joined ADRIC with service no 916. Posted to H Coy
1920 Nov 2. Promoted Section Leader
1921 Feb 8. Posted to Depot Coy. Promoted Platoon Commander.
1922 Jan . Discharged on demobilisation of ADRIC (no date in register, but no indication that he might have resigned)
1922 Jul 25. The undermentioned, having attained the age limit of liability to recall, cease to belong to the Res. of Of.: ——Lt. J. Munn,
1928 Mar 6. Living near Newry when he applies for his medals