Leslie Groves

Leslie R. Groves, Jr.Leslie R. GrovesLeslie R. Groves Jr.General Leslie GrovesGrovesLeslie R. Groves, JrBrigadier General Leslie R. GrovesDr. GrovesGen. Leslie GrovesGen. Leslie R. Groves
Lieutenant General Leslie Richard Groves Jr. (17 August 1896 – 13 July 1970) was a United States Army Corps of Engineers officer who oversaw the construction of the Pentagon and directed the Manhattan Project, a top secret research project that developed the atomic bomb during World War II.wikipedia
396 Related Articles

The Pentagon

PentagonPentagon buildingUS Pentagon
Lieutenant General Leslie Richard Groves Jr. (17 August 1896 – 13 July 1970) was a United States Army Corps of Engineers officer who oversaw the construction of the Pentagon and directed the Manhattan Project, a top secret research project that developed the atomic bomb during World War II.
General Brehon Somervell provided the major motivating power behind the project; Colonel Leslie Groves was responsible for overseeing the project for the U.S. Army.

Armed Forces Special Weapons Project

Defense Atomic Support Agency
He then headed the Armed Forces Special Weapons Project, which had been created to control the military aspects of nuclear weapons.
Major General Leslie R. Groves, the former head of the Manhattan Project, was its first chief.

Oak Ridge, Tennessee

Oak RidgeOak Ridge, TNCity of Oak Ridge
He was involved in most aspects of the atomic bomb's development: he participated in the selection of sites for research and production at Oak Ridge, Tennessee; Los Alamos, New Mexico; and Hanford, Washington.
Maj. Gen. Leslie Groves, military head of the Manhattan Project, liked the area for several reasons.

Trinity (nuclear test)

Trinity testTrinityTrinity nuclear test
By a special Act of Congress, his date of rank was backdated to 16 July 1945, the date of the Trinity nuclear test.
Observers included Vannevar Bush, James Chadwick, James Conant, Thomas Farrell, Enrico Fermi, Richard Feynman, Leslie Groves, Robert Oppenheimer, Geoffrey Taylor, Richard Tolman and John von Neumann.

Lieutenant general (United States)

Lieutenant GeneralLt. Gen.LTG
Lieutenant General Leslie Richard Groves Jr. (17 August 1896 – 13 July 1970) was a United States Army Corps of Engineers officer who oversaw the construction of the Pentagon and directed the Manhattan Project, a top secret research project that developed the atomic bomb during World War II.

United States Atomic Energy Commission

Atomic Energy CommissionU.S. Atomic Energy CommissionAEC
After the war, Groves remained in charge of the Manhattan Project until responsibility for nuclear weapons production was handed over to the United States Atomic Energy Commission in 1947.
He directed that "the primary objective of the AEC was to develop and produce atomic weapons", Nichols was appointed a major general and replaced Leslie Groves as chief of the Armed Forces Special Weapons Project (AFSWP), previously Lilienthal had opposed his appointment.

Hanford Site

Hanford Nuclear ReservationHanfordHanford nuclear site
He was involved in most aspects of the atomic bomb's development: he participated in the selection of sites for research and production at Oak Ridge, Tennessee; Los Alamos, New Mexico; and Hanford, Washington.
In September 1942, the Army Corps of Engineers placed the newly formed Manhattan Project under the command of Brigadier General Leslie R. Groves, charging him with the construction of industrial-size plants for manufacturing plutonium and uranium.

United States Army War College

Army War CollegeU.S. Army War CollegeUS Army War College
He attended the Command and General Staff School at Fort Leavenworth, Kansas, in 1935 and 1936; and the Army War College in 1938 and 1939, after which he was posted to the War Department General Staff.

Manhattan Project

Manhattan Engineer DistrictThe Manhattan ProjectManhattan District
Lieutenant General Leslie Richard Groves Jr. (17 August 1896 – 13 July 1970) was a United States Army Corps of Engineers officer who oversaw the construction of the Pentagon and directed the Manhattan Project, a top secret research project that developed the atomic bomb during World War II.
From 1942 to 1946, the project was under the direction of Major General Leslie Groves of the U.S. Army Corps of Engineers.

German nuclear weapons program

German nuclear energy projectUranvereinGerman nuclear weapon project
He directed the enormous construction effort, made critical decisions on the various methods of isotope separation, acquired raw materials, directed the collection of military intelligence on the German nuclear energy project and helped select the cities in Japan that were chosen as targets.
Since the plant was to be in the future Soviet zone of occupation and the Red Army's troops would get there before the Western Allies, General Leslie Groves, commander of the Manhattan Project, recommended to General George Marshall that the plant be destroyed by aerial bombardment, in order to deny its uranium production equipment to the Soviets.

James C. Marshall

The name was chosen by Groves and MED's district engineer, Colonel James C. Marshall.
Although superseded as head of the project by Brigadier General Leslie R. Groves Jr., in September, he was Manhattan District engineer from 13 August 1942 to 13 August 1943.

Tower 270

270 Broadway86 Chambers StreetArthur Levitt State Office Building
Like other engineer districts, it was named after the city where its headquarters was located, at 270 Broadway.
Fearing the name would draw undue attention, General Leslie Groves changed it to the "Manhattan Engineer District," which was eventually shortened to the Manhattan Project.

Queen Anne High School, Seattle

Queen Anne High SchoolQueen AnneQueen Anne High School.
Groves entered Queen Anne High School in 1913, and graduated in 1914.

Alsos Mission

Operation AlsosAlsosa team of scientists
Groves created Operation Alsos, special intelligence teams that would follow in the wake of the advancing armies, rounding up enemy scientists and collecting what technical information and technology they could.
Brigadier General Leslie Groves of the U.S. Army Corps of Engineers became its director in September 1942.

Kenneth Nichols

Kenneth D. NicholsNicholsKen Nichols
Groves delegated the authority to Nichols, except that contracts of $5 million or more required his authority.
A fellow officer in the expedition, who would later figure prominently in Nichols' career, was First Lieutenant Leslie Groves.

509th Composite Group

509th Bombardment Group509th Composite Group (509 CG)
The 509th Composite Group was duly activated on 17 December 1944 at Wendover Army Air Field, Utah, under the command of Colonel Paul W. Tibbets.
On 8 September, working with Major General Leslie R. Groves, Jr.'s Manhattan Project, Tibbets selected Wendover for his training base over Great Bend Army Air Field, Kansas, and Mountain Home Army Airfield, Idaho, because of its remoteness.

War Powers Act of 1941

War Powers ActFirst War Powers ActSecond War Powers Act
Under Secretary of War Robert P. Patterson (retrospectively) delegated his authority from the President under the War Powers Act of 1941 in a memorandum to Groves dated April 17, 1944.
Under Secretary of War Robert P. Patterson retroactively delegated his authority from the President under the War Powers Act of 1941 to Leslie Groves for the Manhattan Project.

Sandia Base

Manzano BaseSandia Missile BaseArmed Forces Special Weapons Project
Groves had already made a start on the new mission by creating Sandia Base in 1946.
Leslie Groves and Robert Oppenheimer faced the challenges of turning a war-driven, short-term bomb design effort into a stable peacetime operation in charge of producing and maintaining a nuclear stockpile for the nation.

J. Robert Oppenheimer

Robert OppenheimerOppenheimerRobert J. Oppenheimer
Meanwhile, Groves had met with J. Robert Oppenheimer, the University of California, Berkeley physicist, and discussed the creation of a laboratory where the bomb could be designed and tested.
Brigadier General Leslie R. Groves, Jr., the director of the Manhattan Project, thought Oppenheimer was too important to the project to be ousted over this suspicious behavior.

Wilhelm D. Styer

Styer
Groves met with Major General Wilhelm D. Styer in his office at the Pentagon to discuss the details.
A new head, Colonel Brehon B. Somervell, took over the Construction Division on 12 December 1940, and four days later Somervell reorganized it, bringing Styer in as his deputy, and replacing all but two of the Construction Division's branch heads, one of the exceptions being Colonel Leslie R. Groves, Jr..

Henry L. Stimson

Henry StimsonHenry Lewis StimsonStimson
Somervell met Groves outside the hearing room where Groves had been testifying before a United States Congress committee on military housing and informed him that "The Secretary of War has selected you for a very important assignment, and the President has approved the selection ... If you do the job right, it will win the war."
As Secretary of War, Stimson took direct and personal control of the entire atomic bomb project, with immediate supervision over General Leslie Groves, head of the Manhattan Project.

Atomic bombings of Hiroshima and Nagasaki

atomic bombing of HiroshimaHiroshimabombing of Hiroshima
After the atomic bombing of Hiroshima and Nagasaki became public knowledge, he was awarded the Distinguished Service Medal.
The 1943 Quebec Agreement merged the nuclear weapons projects of the United Kingdom and Canada, Tube Alloys and the Montreal Laboratory, with the Manhattan Project, under the direction of Major General Leslie R. Groves, Jr., of the U.S. Army Corps of Engineers.

Vannevar Bush

Bush, VannevarBushV. Bush
Although Reybold was satisfied with the progress being made, Dr. Vannevar Bush was less so.
Major General Brehon B. Somervell, the commander of the army's Services of Supply, appointed Brigadier General Leslie R. Groves as project director in September.

Fat Man and Little Boy

Fatman and Little BoyShadow Makers
In the 1989 film Fat Man and Little Boy, Groves was portrayed by Paul Newman.
In September 1942, U.S. Army Corps of Engineers Colonel Leslie Groves (Paul Newman) who oversaw construction of the Pentagon is assigned to head the ultra-secret Manhattan Project, to beat the Germans, who have a similar nuclear weapons program.

Doctor Atomic

Doctor Atomic SymphonyDr. Atomic
In 2007, Groves was portrayed by Eric Owens in the Lyric Opera of Chicago's work Doctor Atomic.
The work centers on key players in the Manhattan Project, especially Robert Oppenheimer, General Leslie Groves, and also features Kitty Oppenheimer, Robert's wife.