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Wiki states that the entire 41st Div landed at Biak 27 May 44, and engaged Japanese tanks. The campaign continued until Aug 20 1944. NARA has records concerning the history of the Eighth Army and the WW2 Biak Campaign.
You could also use google earth to locate images, monuments and coordinates of Biak.
This is the NARA Link the June portion concerning History of the Biak Campaign, there's also records concerning the logistic supply of food on Biak. If attempting to order copies and portions of the records, focus on the Campaign Journals and After Action Reports as to minimize cost. Sometimes they're broken down into S1, G1 Personnel, G2 Intel, G3 Operations, G4 Logistics, G5 Plans, G6 Communications and G7 Engineering. There would also be medical planning and evacuation for treatment and evacuation of the casualties. During WW2 naval troop transports were also used for landings and supporting fire.
Biak was a major campaign that utilized the entire assets of the 41st while engaging enemy tanks. The following NARA records may contain a more detailed portrait. There may also be maps and still pictures of the operation.
NARA Unit Histories Biak
NARA Biak Operations Link:
NARA Link to Biak Food Investigation:
Thank you so much for your reply!
Of course this brings up many other questions. How were you able to search Wiki? I have tried to reproduce a search but I cannot, I will keep reading.
I will investigate Biak Island and see what I can learn, this is fascinating.
He was with this Company for up to four years, how can I learn where this company was located in the earlier years?
So, he was part of the 8th Army, 173rd Regiment, 41st Division, Anti-tank company.
My brother was is the Air Force but I don’t know the hierarchy.
There must be a book listing this information. Any help would be appreciated. My brother (different than the AF brother) and I will be traveling to College Park later this month, we can get these records pulled.
Thanks again, Diane
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Dear Ms. Smith,
Thank you for posting your request to the History Hub!
We search the Records of the Adjutant General's Office, 1917- (Record Group 407) and located histories, operation reports, general orders and journals of the 163rd Infantry Regiment, 41st Infantry Division. We also searched the Records of U.S. Army Operational, Tactical, and Support Organizations (World War II and Thereafter) (Record Group 338) and located additional records of the 41st. For access to these records, please contact the National Archives at College Park - Textual Reference (RDT2) when you visit the National Archives later this month.
We were unable to locate records of an Anti-Tank Company attached to either the 163rd or the 41st. Please recheck your source for this.
We hope that this information is helpful. Best of luck with your research!
The 641st was redesignated as the 98th Chemical Battalion (Motorized) on June 24, 1944 and then as the 98th Chemical Mortar Battalion.
The 41st Div. was engaged in various battles in the Pacific, but the Wiki entry notes that Biak was an exceptional
battle. The 163 Rgt. may have included the 641st Anti-Tank Battalion within it's After Action Reports or Campaign Journals. Each engagement would have a separate after action entry. My father and many uncles served in the Pacific and Burma during WW2, they are all gone now, and this has been very educational. A search for 41st Infantry Division yields the following link: