9th (Pioneer) Battalion, Seaforth Highlanders, (Ross-Shire Buffs, Duke of Albany's).
Formed at Fort George in October 1914 as a Service Battalion, changed to a Pioneer Battalion in early 1915.
The Commonwealth War Graves Commission has 356 recorded WW1 deaths for the 9th (Pioneer) Battalion, Seaforth Highlanders.
MARSHALL, M. Private, 10608. 9th (Pioneer) Battalion, Seaforth Highlanders, (Ross-Shire Buffs, Duke of Albany's). Highland Cemetery, Roclincourt, Pas-de-Calais, France. 08-05-1917. Son of Mr. M. Marshall of 47, Mordaunt Street, Glasgow, UK.