Oak Ridge petition, July 13, 1945
Source: U.S. National Archives, Record Group 77, Records of the Chief of Engineers, Manhattan Engineer District, Harrison-Bundy File, folder #76.
Leo Szilard sent copies of the July 3 version of the Chicago petition to the Manhattan Project laboratory at Oak Ridge, Tennessee. After discussion and debate, the Oak Ridge scientists produced two similar petitions.

The petition reproduced below endorsed the July 3 version, with a modification to the last paragraph. This petition received 18 signatures, which are listed here in alphabetical order.


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                                           July 13, 1945.

We, the undersigned, agree in essence with the attached petition, but feel that our attitude is more clearly expressed if its last paragraph is replaced by the following:

We respectfully petition that the use of atomic bombs, particularly against cities, be sanctioned by you as the Chief Executive only under the following conditions:
1. Opportunity has been given to the Japanese to surrender on terms ensuring them the possibility of peaceful development in their homeland.
2. Convincing warnings have been given that a refusal to surrender will be followed by the use of a new weapon.
3. Responsibility for use of atomic bombs is shared with our allies.
[in alphabetical order:]
1. Garland M. Branch, Jr.
2. Edmond D. Cashwell
3. Frank C. Hoyt
4. Edwin P. Meiners, Jr.
5. Forrest H. Murray
6. Lothar W. Nordheim
7. Lionel D. Norris, Jr.
8. Louis A. Pardue
9. J. H. Rush
10. Raymond B. Sawyer
11. David Saxon
12. Richard Scalettar
13. Frederic Schuler
14. Harold Schweinler
15. Arthur H. Snell
16. Harry Soodak
17. Alvin M. Weinberg
18. E. O. Wollan

Note: These names were transcribed from hand-written signatures. Although efforts have been made to verify correct spelling, errors may remain.