how can I find west yorks Bandmasters from 1914-1918?

Question

Grandfather was Harry Butterfield, he was on a photo that I rememberseeing as a young boy and he was a bandmaster presumably of a West Yorks regiment. He lost an eye at some stage.Was musical director at the Theatre Royal in Barnsley for many years, died about 1940

Answer 1

History of the “West Yorks” during the Great War.
Both the 1st and 2nd Battalions formed part of the original Expeditionary Force in France in 1914 and continued to serve with distinction throughout the war. The regiment was to grow in size quickly and soon totalled an incredible thirty seven battalions. Twenty four of these units actually saw active service overseas and participated in actions at the Aisne, Neuve Chapelle, the Somme, Montagne de Bligny, the Marne, Cambrai Gallipoli, Vittorio Veneto, Loos and Ypres, whilst others carried out various military duties in all corners of the Empire. Earning no less than 66 Battle Honours, four Victoria Crosses, the Croix de Guerre and innumerable other decorations, as one would expect, the regiment’s achievements were great, however, its losses were considerable too and total of 13,000 officers and men laid down their life for King and Country!

Answer 2

All military records are now on The National Archives website. Someone at W Yorks Family History Society may be researching his regiment (see their website).
Theatre Royal Barnsley may have an archive somewhere. Also try the N Yorks County Record Office (which covers W Yorks), but you will need to be more specific about what exactly you want to know.