I am hoping that someone can give me advice on finding army service records for my grandfather John FOSTER, born 1888 in Leeds, Yorkshire. I have already searched in the Ancestry Pension records and army service records, but there is no trace of him. The only bit of information that I have found is his WWI Medal Rolls Index card. This gives his regimental number as T-25737. His rank was Driver in the Army Service Corps. I know that he served for the duration of the war and was discharged in 1919. As his army records do not appear on Ancestry, am I to assume that they were amongst the ones burnt during the bombing of WWII? If this is the case, are there any other sources (RASC regimental records??) from which I may be able to find out what my grandfather did and where he was posted to during WWI? I would be very grateful for any help with this problem. Thank you.