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I found several webpages with information about the Deadeyes.
If you are interested in books there are several available on ebay.
Dear Mr. Helget,
Thank you for posting your request on History Hub!
We searched the National Archives Catalog and located 3 files related to Oregon maneuvers in the 1940s in the Records of Headquarters Army Ground Forces (Record Group 337) that may be relevant to your research. We also located the series Unit Histories, 1943-1967 in the Records of U.S. Army Operational, Tactical, and Support Organizations (World War II and Thereafter) (Record Group 338) that includes 13 files related to the 96th Infantry Division, 21 files related to the 91st Infantry Division, and 104th Infantry Division in the 1940s. The series Organizational Units Report Files, 1943-1945 in Record Group 338 contains one file for the 96th Infantry Division as well. We also located the series World War II Operations Reports, 1940-1948 in the Records of the Adjutant General's Office, 1917-1985 (Record Group 407) that includes records of the units you are interested in. These records have not been digitized. Please contact the National Archives at College Park - Textual Reference (RDT2) at firstname.lastname@example.org for access to and information about these records.
Next, we located the series Unit Annual Reports, 1940-1949 in the Records of the Office of the Surgeon General (Army) (Record Group 112) that includes one file for the 96th Infantry Division, one file for the 91st Infantry Division, and one file for the 104th Infantry Division. The series Subject Files in the Records of General Headquarters, Far East Command, Supreme Commander Allied Powers, and United Nations Command (Record Group 554) contains 2 files related to the 96th Infantry Division. These records have not been digitized. Please contact RDT2 for assistance with them. ]
Plus, we located the series Published Topographic Maps, 1942-1972 in the Records of the Office of the Chief of Engineers (Record Group 77) that contains 1 file related to the Oregon Maneuvers in the 1940s that may be of interest to you. These records have not been digitized. Please contact the National Archives at College Park - Cartographic (RDSC) at email@example.com for more information about these and similar records.
Due to the COVID-19 pandemic and pursuant to guidance received from the Office of Management and Budget (OMB), NARA has adjusted its normal operations to balance the need of completing its mission-critical work while also adhering to the recommended social distancing for the safety of NARA staff. As a result of this re-prioritization of activities, you may experience a delay in receiving an initial acknowledgement as well as a substantive response to your reference request from RDT2 and RDSC. We apologize for this inconvenience and appreciate your understanding and patience.
We hope this information is helpful. Best of luck with your research!