Part of the University of Leeds website The Liddle Collection is good for background information on your military ancestors. The website says…….
The Liddle Collection was founded over thirty years ago to collect and preserve first-hand individual experiences of the First World War. The archive includes original letters and diaries, official and personal papers, photographs, newspapers and artwork, as well as written and tape-recorded recollections.
Material is arranged within 30 sections, according to nature of service or geographical area, and these are listed in the Summary Guide. This guide also contains subject indexes to uncatalogued material where appropriate. A further section is devoted to material relating to the Second World War.