Morpeth Herald 21/09/1917 carries a brief obituary:
ROLL OF HONOUR
MASON.- Reported wounded and missing, now reported killed in action on 15th September, 1916, Private G. Robert Mason (Bob), 26777 [sic], 7th N.F., aged 24 years and 4 months, youngest and dearly beloved son of James and Helen Mason, 37 Juliet Street, Hirst, late of Bedlington.- Deeply mourned by his loving father, mother, sisters, and brothers, and his loving sweetheart Lottie.
Acknowledgements: Margaret Allison.
He is remembered in Ashington on A17.01 (A17.27) and A17.43 and in the Battalion History