Diary Entry - 23rd April, 1918

Soon after breakfast Siggers went out to recommoitre an OP to cover the Thilloy reserve line on instructions from the Colonel. The enemy planes were active all day and two reconnaisance machines were very intent on registering a group of heavies and for this purpose flew very low. We fired hard on them with the Lewis gun and expended 1,200 rounds of SAA but never brought either of them down though am sure we harassed them. Nicholson spent the day at the OP doing 24-hours duty.