Department of Energy · declassified
Manhattan Project Declassified Documents
65 declassified records on Manhattan Project, dated 1943 to 1995, released by the U.S. Department of Energy. The documents below have plain-English summaries. Every record links to its original scan.
Documents with summaries
Jun 1, 1945 · 80pLA Notebook, J-3 (April 12, 1945 to June 1945)A handwritten Los Alamos notebook, April 12 to June 1945, logging alpha radiation counts on prepared samples, with analysts recorded only by code.Nov 2, 1945 · 2pGroves Letter to Dr. R. C. Tolman Creating the Tolman CommitteeThe letter that created the Tolman Committee, the group Groves put in charge of deciding what Manhattan Project information could be released.Feb 19, 1946 · 257pManhattan District History, Book I: General, Volume 8: PersonnelThe Army's own account of how the Manhattan District recruited, paid and kept the workers who built the atomic project, covering every site except Los Alamos.Dec 31, 1946 · 201pManhattan District History, Book IV: Pile Project, X-10, Volume 6 - OperationVolume 6 of the Manhattan District History covering plutonium plant operations at the Hanford Engineer Works from January 1944 through December 1946.Jun 1, 1947 · 303pManhattan District History, Book V: Electromagnetic Project, Volume 3, DesignAn official Manhattan District volume on how the electromagnetic uranium separation plant was designed, engineered and equipped from 1942 to 1947.Dec 1, 1948 · 174pManhattan District History, Book I General, Volume 1 General (Redacted)The opening volume of the Manhattan District's own internal history, explaining why it was written, how it is organized, and what its eight books cover.Dec 31, 1948 · 8pReport on Health, Safety and Biomedical Research at Los AlamosA 1948 report by T. L. Shipman on how wartime Los Alamos, built around one weapon goal, started with no biomedical research program.Mar 1, 1949 · 63pManhattan District History, Book VIII, Los Alamos Project (Y), Chapter 7: Boron (B10)A 1949 administrative history of how the Los Alamos project ordered, developed and produced crystalline boron and boron enriched in B10.Sep 20, 1950 · 40pDistribution and Excretion of Plutonium Administered Intravenously to ManA September 20, 1950 joint Los Alamos and University of Rochester report on twelve hospital patients injected with plutonium to track where it settled in the body.Sep 20, 1950 · 41pDistribution and Excretion of Plutonium Administered Intravenously to ManA 1950 report on twelve hospital patients injected with plutonium, with the doses given, where it lodged in the body and how slowly it left.Sep 24, 1973 · 94pSource Book on Plutonium and Its Decontamination (DNA 3272T)A 1973 Defense Nuclear Agency report gathering what U.S. agencies then knew about plutonium contamination, how it moves through the body, and how to clean it up.Jun 1, 1995 · 120pHuman Radiation Studies: Oral History of Radiologist Earl R. Miller, M.D.A 1994 interview where a University of California radiologist describes his Manhattan Engineer District radiation safety job and his early iodine-131 work.Jun 1, 1995 · 50pOral History of Health Physicist Karl Z. Morgan, Ph.D.Transcript of a January 7, 1995 interview with the man who ran health physics at Oak Ridge National Laboratory for most of three decades.
More records
Each opens the archive record, with the scan, on osti.gov.
- Jan 1, 1949Manhattan District History; Book VIII, Los Alamos Project (Y); Volume 3, Auxiliary Activities; Chapter 5, Navy Participation; Chapter 6, Sandia Book
- Undated18 Injected in 1945 Plutonium Testing ( Washington Post ) News story
- UndatedHealth Considerations for Workers Exposed to Plutonium Journal article
- UndatedRadiation Protection Standards for Plutonium-239 ( Draft ) (Partial) ( Pu-239 ) Book
- UndatedCurrent Status of Information Obtained from Plutonium Contaminated People ( Los Alamos Scientific Lab, Univ. of Ca, Los Alamos, NM ) Journal article
- Aug 1, 1946Isotopes Branch, Research Division, Manhattan District; 2ND Report of Request Received August 1 to 31, 1946 ( Regarding Isotope Purchase Requests and Their Disposition ) Report
- Dec 2, 1946Manhattan District History, Book IV, Pile Project, Volume 1, General Features Report
- Sep 18, 1946Organization Chart, Manhattan Project, Washington, D.C. Report
- Feb 18, 1947Manhattan District History, Book IV, Pile Project - Volume 5, Construction Report
- Feb 28, 1947Manhattan District History, Book IV, Pile Project, Volume 6 - Operation Report
- Apr 29, 1974Press Release, Subject: Response to Query on Plutonium Injection Study - Manhattan District News story
- Jan 1, 1995Attachment 1: Advisory Committee Staff Document Summary Entitled " Documentation of Manhattan District Biodistribution Program " ( Tab I-1 ) Index
- UndatedAn Overview of Research in Radiation Biology and Protective Measures in the Manhattan Project During the War Years 1942-1946 Report
- UndatedAn Overview of Research in Radiation Biology and Protective Measures in the Manhattan Project During the War Years 1942-1946 Report
- Apr 30, 1943Manhattan District Boston Area Office ( Organization Chart, March 31, 1943 ) ( Revised 04/30/43 ) ( Cover Sheet Attached ) Organizational chart
- Jan 27, 1943Memo, Subject: Organization - Manhattan District ( Enclosure Not Attached ) ( Cover Sheet Is Attached ) Correspondence
- Jun 30, 1943Manhattan District Organization Chart ( Revised 06/30/43 ) ( Cover Sheet Attched ) Organizational chart
- May 1, 1943Manhattan District Organization Chart ( Cover Sheet Attached ) Organizational chart
- Oct 20, 1944Memo to District Engineer, Manhattan District, Subject: Subcontract Number 7401-37-2 to Contract Number W-7401-Eng-37 Correspondence
- Feb 7, 1945Letter to the District Engineer, Manhattan District, Oak Ridge, Tenn from S L Warren, Subject: Summary of Case of Leukemia in ( Redacted ) Correspondence
- Jun 22, 1945Detailed Description of Work Performed - the Project Under the Supervision of the Manhattan District Legal document
- Mar 21, 1945Manhattan District Organization Chart ( March 21, 1945 ) ( Cover Sheet Attached ) Organizational chart
- Nov 26, 1945Security Manual, Manhattan District Classification Guide Policy statement; manual
- Aug 16, 1946Letter to District Engineer, Manhattan District, Subject: Ability to Furnish Neutron Source Requested ( Polonium ) Correspondence
- Aug 22, 1946Letter to R Stone, Subject: Advisory Committee to the Medical Division of the Manhattan District to Be Formulated for the Purpose of Giving Assistance to the Dir. of the Div. re Medical Problems Correspondence
- Aug 22, 1946Letter to S L Warren, Subject: Invitation to Serve on an Advisory Committee to the Medical Division of the Manhattan District ( Companion Docs. Are 709492 - 709505 ) Correspondence
- Dec 31, 1946Cover Sheet ( History of the Activities of the Manhattan District Research Division, Oct. 15, 1945 - Dec. 31, 1946 Attached ) ( Redacted ) Miscellaneous
- Dec 31, 1946Manhattan District History; Book I - General; Volume 13 - Patents Book
- Feb 26, 1946Memo to the District Engineer, Manhattan District, Subject: Present Research Programs ( Companion Document Is 709579 ) Correspondence
- Jan 3, 1946Memo to S L Warren, Subject: Specific Proposals for the National Distribution of Radioisotopes Produced by the Manhattan Engineer District Book
- Jun 1, 1946Manhattan District Organization Chart ( June 1, 1946 ) ( Over Sheet Attached ) Organizational chart
- Mar 12, 1946Memo to S L Warren, Subject: Manhattan District History, Book I, General - Volume 7, Medical Program Correspondence
- Nov 21, 1946Memo to District Engineer, Manhattan District, Subject: Medical Advisory Committee Report Correspondence
- Nov 25, 1946Letter to a H Dowdy, Subject: Submittal of a Program for the Consideration of the Research Division of the Manhattan District Correspondence
- Oct 4, 1946Memo to District Engineer, Manhattan District, Subject: Proposed Purchase of Betatron by Rochester Project ( Enclosure: Duplicate of Letter ) Correspondence
- Oct 8, 1946Letter to W D Fleming, Subject: Received and Read the Copy of the Proceedings of the First Meeting of the Medical Advisory Committee of the Manhattan Engineering District Correspondence
- Oct 18, 1946The University of Rochester Manhattan Project Contract W-7401-Eng-49 - Report for the Month of September, 1946 Division of Radiology and Biophysics Legal document
- Sep 11, 1946Letter to K D Nichols, Subject: Acceptance of an Offer to Serve as a Member of the Advisory Committee to the Medical Division of the Manhattan District ( Companion Document Is 709463 ) Correspondence
- Sep 19, 1946Letter to District Engineer, Manhattan District, Et Al, Subject: Proposal for a Bibological Program with High Energy Radiation from the Betatron ( No Enclosure ) Correspondence
- Sep 23, 1946Letter to H L Friedell, Subject: Proceedings of the First Meeting of the Medical Advisory Committee of the Manhattan Engineer District ( Enclosure Not Attached ) Correspondence
- Sep 26, 1946Manhattan District Medical Division Letter of Recommendation Re: Animal Research at University of Virginia Correspondence
- Jun 5, 1947This Letter Regarding the Decision to Classify Reports on Manhattan Project Human Experimentation Reflected Concern for the Use of " Unwitting Subjects " Includes Marginal Notes by Achre Staff Correspondence
- Jun 18, 1947Letter to O N Rambo, Subject: Scientists of the Manhattan Project Correspondence
- Mar 28, 1947Manhattan District History; Book I - General; Volume 12 - Clinton Engineer Works; Central Facilities; Appendix D Book
- Aug 6, 1952Letter to W F Knowland, Subject: Opinion on Possible Government Liability in a Death ( Manhattan Project ) Correspondence
- May 3, 1971Memo to R E Hollingsworth, Et Al, Subject: Diagnostic Follow-Up of a Plutonium Worker from the Manhattan Project (Enclosure: as Stated) Correspondence
- May 21, 1971Memo to R E Hollingsworth, Et Al, Subject: Diagnostic Follow-Up of a Plutonium Worker from the Manhattan Project Correspondence
- UndatedManhattan District History: General Comments Legal document
- UndatedLetter to L R Groves, Subject: Recommendations for the Manhattan District Correspondence
- UndatedFact Sheet on Manhattan Engineer District (Med) Plutoniuum Excretion Studies Data
- UndatedForward, Subject: This Volume Presents a Non-Technical Record of the History of the Medical Program of the Manhattan District Unknown
- UndatedHistory of the Medical Program of the Manhattan District Legal document
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