Please refer to my post #6072, dated 12-29-01, which will provide a little of the unit's military history.
One of your key points was the significance of the term BATTERY B.
BATTERY is an identifier of a unit of the Field Artillery.
Organization-wise, there was the single soldier, the squad, the battery, the battalion, the regiment, thebrigade, the corps and army, in ascending order.
In my initial summary (6072), I described the organization of the 101st A/B Division as including variousInfantry Regiments and "other elements".
Two of the "other elements" were the 321st Glider Field Artillery Battalion and the 907th G/FA-BN. Each unit included 75mm howitzers as its primary armament.
Since your dad referenced his service with a Battery, he must have been in one of these two G/FA-BNs.
You know of the division's air assault on Normandy, 6 June 44, where the beach exits in the St.Martin-de-Verreville-Pouppeville were secured; the division started the battle for Carentan, 8 June 44; it repulsed counterattacks and maintained its positions until relieved, 27 June 44; it returned to England for rehabilitation, 13 July 44. Next, the division air assaulted in Holland, 17 Sep 44, seizing the bridges at Velgel and Zon, north of Eindhoven; it cleared Eindhoven, 18 Sep 44; it contained counterattacks toward Zon, 19 Sep 44, and maintained positions at Eindhoven, Zon, St. Oeden-ride and Veghel; it was relieved from its positions, and withdrew to France for rehabilitation, 28 Nov 44.
The division was released from reserve 17 Dec 44, in response to the German Ardennes Counterattack (Bulge), and arrived at Bastogne, 19 Dec 44, where it established defesive lines as the city was encircled, 20 Dec 44; the beleagered unit was finaly reached by 4th Infantry Division, ending the seige.
In ensuing engagements, it took Recogne, cleared the Bois Jacques, captured Foy, Bourcy nd Hardigny; on 23 Jan 45, it took up defensive positions along the Moder River.
It reached Berchtesgaden when hostilities ended, 7 May 45.
The 101st A/B Division was inactivated in France, 30 Nov 45.