Thank you for your post.
My post, to which you replied, should have given a bit more detail of John Charles's enlistment. According to his complete WW1 service record
His "Final Pre-enlistment" medical took place in 41 Tanner Street, York, on 16 January 1915
He enlisted on 19 January 1915, initially for 3 Years.
He was approved fit for service on 21 January 1915
His RND service number was [Deal] 3287(S)
You may recall corresponding with me last year about 466/135 (M) HAA Regiment Royal Artillery [Territorial Army] in the Second World War. With your help I was able to tell the story of my father-in-law’s life to his family.
Mainsforth