Trying to find info on father's Korean war service. He was in tank company, 31st infantry, 7th ID from October 1951 to about March 1952 as a WOjg . Was wanting to know what action that group saw.

My father was in tank company, 31st infantry, 7th ID from October 1951 to about 01 March 1952. He was in mundung ni valley not too far from heartbreak ridge. He never described any action but told my cousin shortly before he died that they were in the mess tent near Christmas 1951 when they were attacked by Chinese and/or  North Koreans. The men were fighting hand to hand with knives, forks, and whatever they could grab.  Since Daddy had dementia and had never mentioned this, is there any way to find out if this happened and the details such as exact date and place? Any way to find out what action the company saw?