On 22 June 1918 Percy fell ill with Influenza and was taken, by 148th Field Ambulance, to the 56th Casualty Clearing Station for treatment. On 29 June 1918 Percy was transferred to 2nd Convalescence Depot in Rouen. Whilst at Rouen, Percy went AWOL for 24 hours from 21:00 on 5th July 1918 to 21:20 on 6th July 1918. He was awarded 14 days FP No2 and forfeited 2 days pay before transferring to Calais on 11 July 1918. On 30 August 1918 he rejoined 1st RM Battalion.
Percy was granted leave to the UK and left on 12 October 1918. On 19 October 1918 he married my gran, Polly Ann Zillah Long, who was in the Women's Land Army, and returned to France on 26 October 1918 and further training at Anneux until 31 October 1918 when transport left for a new area. On 2 January 1919 Percy was awarded special leave to the UK until 9 February 1919, this was subsequently extended until 17 February 1919 for urgent private affairs, although I have no information for this leave. Percy re-joined his Battalion on 26 February 1919. On 22 May 1919 Percy embarked at Dunkirk for return to the UK.
Once back in the UK Percy went back to his wayward streak and went AWOL at midnight on 27 July 1919, returning at 10:45 on 28 July 1919, he was confined to barracks for 7 days and forfeited 1 day's pay.