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Atomic Letters: Einstein, Roosevelt,...

Atomic Letters: Einstein, Roosevelt, Sachs

By Callie Oettinger

Albert Einstein to President Franklin D. Roosevelt, 08/02/1939. Credit: National Archives. — Albert Einstein to President Franklin D. Roosevelt, 08/02/1939.
Credit: National Archives.

Neutron Production and Absorption in Uranium, H.L. Anderson, E. Fermi, Leo Szilard, 8/1/39. Credit: Franklin D. Roosevelt Presidential Library and Museum. — Neutron Production and Absorption in Uranium, H.L. Anderson, E. Fermi, Leo Szilard, 8/1/39.
Credit: Franklin D. Roosevelt Presidential Library and Museum.

nstantaneous emission of fast neutrons—Leo Szilard and Walter H. Zinn, 4/14/39, The Physical Review. Credit: Franklin D. Roosevelt Presidential Library and Museum. — nstantaneous emission of fast neutrons—Leo Szilard and Walter H. Zinn, 4/14/39, The Physical Review.
Credit: Franklin D. Roosevelt Presidential Library and Museum.

Leo Szilard Memo to President Frankli Roosevelt undated Roosevelt Presidential Library and Museum — Leo Szilard Memo to President Franklin D. Roosevelt, undated.
Credit: Franklin D. Roosevelt Presidential Library and Museum.

Leo Szilard Memo to President Franklin Roosevelt undated Franklin Roosevelt Presidential Library and Museum — Howard Walls to Elizabeth Drewry, Director FDRL, 9/29/65.
Credit: Franklin D. Roosevelt Presidential Library and Museum.

Alexander Sachs to President Franklin D. Roosevelt, 10/11/1939. Credit: Franklin D. Roosevelt Presidential Library and Museum. — Alexander Sachs to President Franklin D. Roosevelt, 10/11/1939.
Credit: Franklin D. Roosevelt Presidential Library and Museum.

President Franklin D. Roosevelt to Watson, 10/13/39. Credit: Franklin D. Roosevelt Presidential Library and Museum. — President Franklin D. Roosevelt to Watson, 10/13/39.
Credit: Franklin D. Roosevelt Presidential Library and Museum.

Edwin Watson to Albert Einstein, 10/17/39. Credit: Franklin D. Roosevelt Presidential Library and Museum. — Edwin Watson to Albert Einstein, 10/17/39.
Credit: Franklin D. Roosevelt Presidential Library and Museum.

President Franklin D. Roosevelt to Albert Einstein, 10/19/39. Credit: Franklin D. Roosevelt Presidential Library and Museum. — President Franklin D. Roosevelt to Albert Einstein, 10/19/39.
Credit: Franklin D. Roosevelt Presidential Library and Museum.

Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 05/17/1943. Credit: Library of Congress. — Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 05/17/1943.
Credit: Library of Congress.

Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 6/18/1943. Credit: Library of Congress. — Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 6/18/1943.
Credit: Library of Congress.

Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 6/29/1943. Credit: Library of Congress. — Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 6/29/1943.
Credit: Library of Congress.

Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 7/30/1943. Credit: Library of Congress. — Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 7/30/1943.
Credit: Library of Congress.

Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 8/13/1943.
Credit: Library of Congress.

Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 8/22/1943. Credit: Library of Congress. — Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 8/22/1943.
Credit: Library of Congress.

Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 9/1/1943. Credit: Library of Congress. — Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 9/1/1943.
Credit: Library of Congress.

Albert Einstein to Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 1/4/1944. Credit: Library of Congress. — Albert Einstein to Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 1/4/1944.
Credit: Library of Congress.

Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 10/15/1944. Credit: Library of Congress. — Letter of Albert Einstein to the Lieutenant Stephen Brunauer, U.S. Navy Bureau of Ordnance, 10/15/1944.
Credit: Library of Congress.

Albert Einstein to President Franklin D. Roosevelt, 3/25/45. Credit: Harry Truman Presidential Library. — Albert Einstein to President Franklin D. Roosevelt, 3/25/45.
Credit: Harry Truman Presidential Library.

CALLIE OETTINGER was Command Posts’ first managing editor. Her interest in military history, policy and fiction took root when she was a kid, traveling and living the life of an Army Brat, and continues today.