from "The Times" Wednesday, October 4, 1916 page 4, under "personal notes":
"Major Guy Egerton Kidd, R.F.A., who was killed on September 26, was the eldest son of Percy Kidd, M.D., of 60, Brook-Street, W. He was educated at Clifton College, whence he passed into the Royal Military Academy, Woolwich. He obtained his commission in the R.F.A. in 1901. After serving at home and in India, he was appointed adjutant of the 4th South Midland (Howitzer) Brigade, R.F.A., in which capacity he went to the front in March, 1915. Since October in that year he had commanded a battery, and he attained his majority in February, 1916. He leaves a widow."
(*I am not a relation...just sharing information I've found in an old newspaper)