"Major Hugh J. Duff, D.S.O., M.C., Lovat Scouts, attached 1st Kings, whose photograph appears to-day was killed in action, as recently recorded. 
Deceased was the only son of the late Mr Hugh A. Duff, Edderton, Ross-shire and Kereru, New Zealand, and of Mrs Duff, Kereru, Lossiemouth, and grandson of the late Rev. John Walker, St. Andrews, Lhanbryde. Major Duff was educated at the Tain Academy, Inverness College, and Edinburgh. For some years he engaged in sheep farming in New Zealand. He came home in 1914, and received a commission in the Lovat Scouts. He was awarded the M.C. for work done at Bourlon Wood, and the D.S.O. for work done during the retreat in March, 1918. He had been twice mentioned in dispatches. 

Major Duff was killed instantaneously when in command of his battalion." [Source: www.scottishmilitaryresearch.co.uk]