A few pages mis-filed in the MAR section of the WW1 Service Records (WO 363):

William Henry LONG, born 11 Dec 1893, enlisted February 1916.
Service unclear, but discharged 1919 as Pte 87268 Labour Corps.

Home address: Shepherds Bush, London.
Wife: Louise (possible first initial W or M).

Anc****y, MAR, pages 109729-109736