Enlisted as George William in 1914, so is filed under that name in the WW1 Service Records (WO 363):

James William SCOTT, address Blackfriars, London. Married (Fulham) 1897 to Alice Louisa JONES. Children: Benjamin Alfred (1901), Alice Winifred (1906), Elsie Doris (1909), James Frederick (1912) & Frank Leslie (1917).

Enlisted August 1914, declared age 45yr or 48yr. Served with the London RDC until 1919.
Previous service, possibly with the Welsh Regt, 1887-1894.

Anc****y, SCO, pages 104433 to 104445