Arthur is listed as being killed in action on 18th August 1916. The 1st/5th Battalion war diary entries for the period 16th to 19th August are transcribed below.
Bouzincourt – 16.8.1916: Relieved the 6th Glosters as in OO 56 and took over as follows:
A-B Coys in trenches Orvillers Village
HQ & C-D Coys in trenches Orvillers Posts
Orvillers Post – 17.8.1916: No diary entry made
Orvillers Post – 18.8.1916: The battalion attacked as in 143 Bde OO No 81. Orders issued to O.C. Coys verbally. The attack was successful. A coy took first objective, B Coy plus two platoons of C Coy took the second – D coy joined the garrison of the trench 28-37and C Coy less two platoons joined a carrying party.
The jumping off place was 28-88, ladders were placed on the right of the 17th, 18th and dumps? joined at 28 and 88. Battn HQ’s were near Post 05 and advanced HQ Point 67.
At night a Coy of the 1/8 R War R took over from 28-37 and C & D Coys went forward to assist A & B Coys.
Orvillers – 19.8.1916: Line readjusted at daylight as shown in Appendix III. Patrols sent forward and in Appx IV – Pt 79 not captured. Line readjusted at night as in 143 Bde II 82 (Battn OO 57).