Question: Carleton B. Swift Jr was an officer of Office of Strategic Services, an active agency during which time?

Context paragraphs:
Strategic Services Unit: The Strategic Services Unit was an intelligence agency of the United States government that existed in the immediate post–World War II period.  It was created from the Secret Intelligence and Counter-Espionage branches of the wartime Office of Strategic Services.

William J. Donovan: William Joseph ("Wild Bill") Donovan (January 1, 1883 – February 8, 1959) was an American soldier, lawyer, intelligence officer and diplomat.  Donovan is best remembered as the wartime head of the Office of Strategic Services (OSS), the precursor to the Central Intelligence Agency, during World War II.  He is also known as the "Father of American Intelligence" and the "Father of Central Intelligence".  "The Central Intelligence Agency regards Donovan as its founding father," according to journalist Evan Thomas in a 2011 "Vanity Fair" profile.  The lobby of CIA headquarters, in Langley, Virginia, now features a statue of Donovan.  Thomas observed that Donovan's "exploits are utterly improbable but by now well documented in declassified wartime records that portray a brave, noble, headlong, gleeful, sometimes outrageous pursuit of action and skulduggery."

Wally Swift Jr: Wally Swift Jr (born 17 February 1966) is a British former boxer who was British light middleweight champion between 1991 and 1992, and also fought for the European title.

Office of Strategic Services: The Office of Strategic Services (OSS) was a wartime intelligence agency of the United States during World War II, and a predecessor of the modern Central Intelligence Agency (CIA).  The OSS was formed as an agency of the Joint Chiefs of Staff (JCS) to coordinate espionage activities behind enemy lines for all branches of the United States Armed Forces.  Other OSS functions included the use of propaganda, subversion, and post-war planning.

Toyon Bay: Toyon Bay is located on Catalina Island off the coast of California.  Originally inhabited by a group of natives called Pipi Mari (or Pimugnans), and the Torqua, after whom a nearby spring is named.  In the early 1900s, it was the site of a boys' boarding school.  During World War II, the boys were evacuated and the facility was turned into an Office of Strategic Services training camp.  Chinese and American men were trained in guerrilla warfare for use behind Japanese lines in China.  The Office of Strategic Services was the precursor to the Central Intelligence Agency.  After the war, it saw time as a boarding school, a singing camp, resort in the 50's and was later abandoned.

Roger Wolcott Hall: Roger Wolcott Hall (May 20, 1919 in Baltimore, Maryland – 20 July 2008 in Windsor Hills, DE; congestive heart failure) was an American Army officer and spy in the Office of Strategic Services during World War II and the author of a humorous memoir of his experiences in the Office of Strategic Services (OSS), entitled "You’re Stepping on My Cloak and Dagger" (1957).  The book was reportedly used in Central Intelligence Agency (CIA) training and was re-issued by the Naval Institute Press in 2004.   He also wrote two novels: "All My Pretty Ones" about the world of fashion and "19" about the O.S.S.

2677th Office of Strategic Services Regiment: 2677th Office of Strategic Services Regiment was a special infantry regiment that was seconded to the Office of Strategic Services as an operational armed force.

Ross Lee Finney: Ross Lee Finney Junior (December 23, 1906–February 4, 1997) was an American composer born in Wells, Minnesota who taught for many years at the University of Michigan.  He received his early training at Carleton College and the University of Minnesota and also studied with Nadia Boulanger, Edward Burlingame Hill, Alban Berg (from 1931-2) and Roger Sessions (in 1935).  In 1928 he spent a year at Harvard University and then joined the faculty at Smith College, where he founded the Smith College Archives and conducted the Northampton Chamber Orchestra.  In 1935, his setting of poems by Archibald MacLeish won the Connecticut Valley Prize, and in 1937, his "First String Quartet" received a Pulitzer Scholarship Award.  A Guggenheim Fellowship funded travel in Europe in 1937.  During World War II, Finney served in the Office of Strategic Services, and received a Purple Heart and a Certificate of Merit.

Jean Sainteny: Jean Sainteny or Jean Roger (29 May 1907, Vésinet – 25 February 1978) was a French politician who was sent to Vietnam after the end of the Second World War in order to accept the surrender of the Japanese forces and to attempt to reincorporate Vietnam into French Indochina.  He traveled to Hanoi on August 22, 1945 with American OSS officers, Archimedes Patti and Carleton B. Swift Jr. before being put under house arrest by the Japanese.

Carleton B. Swift Jr.: Carleton B. Swift Jr. was a U.S. Navy seaman, Office of Strategic Services (OSS) officer, and CIA officer between 1941 and 1974.  Swift played a subordinate role to Archimedes Patti as part of the OSS team that met with Ho Chi Min in September, 1945.

Supporting paragraphs: Carleton B. Swift Jr. Office of Strategic Services
Answer: World War II