Mis-filed as MARSHALL in the WW1 Service Records (WO 363):

Ernest MONSHALL joined the Royal West Kents (Pte 6551) in July 1902, declared age 18y 9m, born Deptford. (Freebmd suggests Ernest Albert, Q3 1885).
Home address: Deptford, Kent
Parents: Henry & Sarah.
Brother: Harry.
Not a happy military career - AWOL in 1902, Ceylon 1903-1904, Reserve 1905, Struck off (absence) 1906.

Anc****y, MAR, pages 10980-11011