I didn't know your dad, but I can provide more indepth information as to what-when-where-why as related to his outfit's activities in this critical period.
Bob informed you when and where the unit was activated, where it served/campaigned, and where it was inactivated, so I will not repeat that information.
The division departed NY P/E 1 Dec 44, and arrived in England 12 Dec 44; arvd. France 25 Dec 44.
Overseas Wartime Assignments: 12th. Army Group 27 Dec 44 Fifteenth Army 31 Mar 45.
Commanders: Mjr Gen Herman F. Kramer, Apr 43 MG Walter E. Lauer, Aug 45.
Campaigns: Northern France
Killed in Action 795 Wounded in Action 636 Died of Wounds 5
The division arvd. in Cherbourg, France on 25 Dec 44 after having been torpedoed in the English Channel, with the loss of 14 officers and 748 enlisted men.
The division was then attached to the 12th. Army Group Coastal Sector with operational control of all French forces in the area. It relieved the 94th. Infantry Division in the Brittany-Loire area on 29 Dec 44.
On 31 Mar 45 the division was placed under the Fifteenth Army , which took control of the coastal sector of France. A heavy German counterattack near La Croix was repulsed on 16 Apr 45. Several German strongpoints were captured during operations which extended from 19-29 Apr 45. The German defenders of both Lorient and St. Naxaire Pockets surrendered to the division 8 May 45, and the division was relocated to the Koblenz area of Germany for occupation duty 20 May 45.
The division was located at Chateaubriant, France, at war's end, 15 Aug 45.
Too bad he didn't discuss this with the family, but then there are some things one simply can't bring up for discussion.
I hope that this has filled in some of the blanks for you.
My excellent reference for the above follows:
"World War II Order of Battle" Shelby L. Stanton, author Galahad Books, NYNY, Publisher.