Hi JenneThe army did not have accountants. Maybe he recorded his civil job as well.In an Army List from 1918 he is listed under 3rd Battalion (Special Reserve) Welsh Regiment as a Lt (effective 1 July 1917) but attached to the Machine Gun Corps. I could not find a medal card for him. So he would not have served overseas.I did find this on the LG – http://www.london-gazette.co.uk/issues/30201/supplements/7581/ - he is bottom left. Notice that his lieutenancy was back-dated to 1st of April.There is no clue as to what kind of instructor his was. Given his profession he may have taught payroll sergeants etc. You should check his local record office to see if a National Roll of Honour was produced for his town. He may have paid for a mention given his lack of medals. Also his obituary may give some clues.Ken