Recruitment by Regimental Areas Ireland

[Seamusmac]

I am looking for information relating to the OMAGH Regimental Area for the 1914-1917 period where a total of 8,200 men were recruited.

I am particularly looking to get a breakdown of recruits from the city of Londonderry and the different regiments they joined. I have a paper from 1987 on WWI recruitment in Ireland that says that "the recruitment authorities kept detailed lists of the response in each district. These lists are available at the Public Record Office in London and end in June 1917." A reference code of PRO Nats 1-85 or Nats 1/85 is given but when I spoke to PRO they could not track it down.

Any help would be much appreciated.