1882 Sep 18 Born Tipperary
1901 census He is with his parents in Tipperary
1918 Feb 10. Labour Corps. The undermentioned W.O.'s, N.C.O.'s and men to be temp. 2nd Lts., with effect from dates shown : Pte. E. M. Riordan, from M.G. Corps.
1919 Aug 10 The undermentioned temp. 2nd Lts. to be temp. Lts.: Labour Corps, E M Riordan
1919 May 28. Temp. Lt. E. M. Riordan to be Adjt., Lab. Group
1919 Nov 26. His spell as adjutant ends
1920 Oct 26. Labour Corps The undermentioned temp. Lts. relinquish their commissions on completion of service, from the dates specified, and retain the rank of Lt. : E. M. Riordan.
1920 Oct 08. Joined ADRIC with service no 687. To F Coy
1921 Jan 8 to 11 Jan on Leave
1921 Mar 11. Wounded in Brunswick St raid . Claimed later £2000 for his wounds that day, but received £1000 from the court
1921 Mar 14 Admitted to Hospital until 29 Apr
1922 Jan 17. Discharged on demobilisation of ADRIC
WO 374/57891 E M Riordan need it to get anywhere with him