The Narborough Research Group site states the following for 2/AM Williams.
"2/AM C.V.Williams’ letters home present a similar catalogue of death and mutilation, from flying and traffic accidents, but also give an insight to life in the ranks in 1916. He was one of thirty-three Air Mechanics arriving to join 59 Squadron at the beginning of June..."
If you have any information about 2/AM Williams, please contact me, thank you.