John: Here is some information on the 3rd Inf Reg that I summarized from the 106th Infantry Division’s After Action Reports from March through June 1945.
March -The only mention of the 3rd for this month is in a table in the G1 annex for the Operation Report.It just lists the regiment with an asterisk that it was attached to the division on 16 Mar 45.The 106th was relocating to St. Quentin, France. The 106th commander was Maj. Gen. D.A. Stroh.The 3rd Inf Reg commander was Col. Herbert J. Vander Heide.
April – 100-200 men from the 3rd were transferred to cadre the reconstitution of the 422 and 423 Inf Reg and 589 and 590 Field Artillery BN.The 3rd was to participate in 4 weeks of training in the vicinity of Rennes, France.
Apr 1-6:the 3rd started to arrive at the camp set at the St. Jacques Airport from Camp Lucky Strike.Though not mentioned in the AAR, I believe Camp Lucky Strike was located near La Harve.
Apr 15:received warning orders that the 3rd was designated to guard German POWs.There was to be an early cessation of training.
Apr 15-18:3rd in reserve for the 66th ID.
Apr 21-30:3rd moved by motor and rail to the vicinity of Sromberg, Germany.The 106th secured and administered 4 large PWTE (Prisoner of War Temporary Enclosure).
30 Apr – 2 May:3rd moved to Buderich, Germany to relieve 1st BN, 159 INF guarding PWTE #A-4.FO #12 dated 28 Apr 45 and FO #13 dated 29 Apr 45.
May AAR – 3rd was located at following locations:PWTE #A-4 at Buderich, 1st BN 3rd Inf, enclosure commander Maj Horracks;PWTE #A-9 at Wickrathberg, Maj. Jack McAllister; and PWTE # A-8 at Dietesheim, 2d Bn, Maj. John W. Heiney.The May AAR was short and only covered the period May 1-9, 1945.(Perhaps the remainder of the month was devoted to celebration.)
May 3:3rd (less 2 battalions) moved to vicinity of Lintfort, Germany.FO #15, dated 2 May 45 says 3rd (less 3 battalions) were to be moved.
June AAR – Jun 9:PWTE #A-4 closed.POWs transfered to PWTEs A-1 and A-9.
Jun 10-12:PWTE #A1 and A9 with 179,158 POWs turned over to British.
Jun 13-19:3rd Inf moved to Weisbaden and took overPWTE #A-18 at Siershaum, A-19 at Limburg, A-20 AT Babenhausen,and A-21 at Darmstadt, east of Rhine River.
Jun 23:3rd was relieved from attachment to 106th and assigned to Seventh U.S. Army which assumed responsibility for PWTEs A18, A19, A20, A21.Orders were dated 6 Jul 1945 so enclosures continued under 106th control for remainder of June.
I hope this helps.
David, Fairbanks, AK
***John – Do you know if your uncle received the Combat Infantryman Badge?