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The text for this web site is a combination of original material and adaptations from previous publications of the Department of Energy (including contractors), its predecessor agencies (primarily the Atomic Energy Commission and the Manhattan Engineer District), and other government agencies. Adaptations run the gamut from summaries to close paraphrases to text being taken directly. This material was gathered and adapted for use by the DOE's Office of History and Heritage Resources.  For detailed notes on what sources were used for any particular page, see the footnote at the bottom of the page or its entry in Sources and Notes. For a discussion of the best general sources on the Manhattan Project, see the Suggested Readings.

To the best of our knowledge, all text and images on this web site are in the public domain. Almost all of the photographs were generated by government agencies, or by contractors working for the government, and as such are not subject to copyright. Most of these photographs were acquired from government web sites or government publications. In a handful of cases, photographs were used whose copyright had expired; these were acquired from the Library of Congress's web site. Some of the photographs have been "retouched," but in all cases the intention was only to restore the image to its original form as much as is possible. (Click here to see a "before and after" example of retouching.) As with the text, the sources of all images are noted in the footnotes and in the entries in "Sources and Notes" for the pages in which they appear.  

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Sources and notes for this page.

The text for this page is original to the Department of Energy's Office of History and Heritage Resources.

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