Rank: Warrant Officer II (CSM)
Unit: 2nd Battalion, The Royal Norfolk Regiment, British Army
Awarded: 24th June 1940
The following details are given in the London Gazette of 23rd August, 1940:
For most conspicuous gallantry on the 21st May 1940 when his company was holding a position on the line of the River Escaut, south of Tournai. After a prolonged attack, the enemy succeeded in breaking through beyond the company's right flank which was consequently threatened. Company Sergeant-Major Gristock having organised a party of eight riflemen from company headquarters, went forward to cover the right flank. Realising that an enemy machine-gun had moved forward to a position from which it was inflicting heavy casualties on his company, Company Sergeant-Major Gristock went on, with one man as connecting file, to try to put it out of action. Whilst advancing, he came under heavy machine-gun fire from the opposite bank and was severely wounded in both legs, his right knee being badly smashed. He nevertheless gained his fire position, some twenty yards from the enemy machine-gun post, undetected, and by well aimed rapid fire killed the machine-gun crew of four and put their gun out of action. He then dragged himself back to the right flank position from which he refused to be evacuated until contact with the battalion on the right had been established and the line once more made good. By his gallant action, the position of the company was secured, and many casualties prevented. Company Sergeant-Major Gristock has since died of his wounds.
CSM Gristock made it back to his unit and was evacuated to Brighton Hospital where he died several days later from his wounds.