1896 Apr 21. Born Ormskirk, Lancs
1901 census at Gateshead Fell Rectory, Gateshead
1911 census at Old Rectory Sheriff Mount Gateshead
1914 Oct 5. Landed in France with Northumberland Hussars and served in France until 2 May 1918
1919 Mar 13 Demobilised and commissioned on same day. The undermentioned Cadets are granted Honorary Commissions as 2nd Lt., with effect from the date of their demobilisation: — 270134 Eric Percy Herdman.
1921 Apr 25. Joined ADRIC with service no 1915. Posted to L Coy
1921 Jun 16. Wounded in Rathcoole Ambush . Later got £350 compensation - shot in the shoulder.
1921 Jun 16 Admitted Cork Military Hospital
1921 Jul 11 Discharged Cork Military Hospital
1921 Jul 11 to 22 Aug . Medical Leave
1921 Jul/Sep married in London to Elise Van Meersche
1922 Jan 20 Discharged at demobilisation of ADRIC
1939 Census at The Old Rectory Sheriff Mount , Gateshead (as in 1911 census) with mother Jane. He is a Company Director Automobile Engineer
1945 Oct/Dec Died Surrey, aged 49