M.M. London Gazette 21.12.1944. Recommendation states 'Following on the night attack on the woods South-East of St. Sylvain, this Battalion was subjected to the most intense enemy mortaring and shelling and Private Moncrieff, throughout this period which lasted for about 18 hours, spent practically the whole time in the open mending and relaying the Battalion signal lines. At one time in particular, when the enemy was forming up for a counter attack, and when the enemy shelling and mortaring was at its heaviest, communications with one of the forward Companies broke down owing to the Wireless Operators having become casualties and it became vital to get in touch with this Company immediately. Private Moncrieff who had just returned from repairing another line at once volunteered to go out again and mend the line to
go out again and mend the line to his Company which he proceeded to do successfully under the most difficult conditions possible. He displayed courage of the very highest order and none who saw him can speak too highly of his inspiring conduct'.

Lance-Corporal Andrew Gardner Moncrieff, M.M., was recommended by the C.O. of the 1st Battalion, Black Watch, Montgomery as C.-in-C. 21 Army Group approving the award. Tragically, the gallant Moncrieff was killed in action on 6.9.1944. Aged 25 years, he left a widow. Moncrieff is buried in St. Marie Cemetery, Le Havre, France.