Question: What years would Lyman James Briggs have been the director of the National Bureau of Standards, if he was a  a director of the National Bureau of Standards during the Great Depression?

full_context: Document 1: Ernest Ambler: Ernest Ambler (born November 20, 1923) is a British-American physicist who served as the Acting Under Secretary for Technology in the Department of Commerce (1988–89), as director of the United States' National Bureau of Standards (NBS, 1975–89), and as the first director of the United States' National Institute of Standards and Technology 1988–89.
Document 2: Allen V. Astin: Allen Varley Astin (June 12, 1904 – January 28, 1984) was an American physicist who served as director of the United States National Bureau of Standards (now the National Institute of Standards and Technology) from 1951 until 1969. During the Second World War he worked on the proximity fuse. He was an advocate for introduction of metric weights and measures to the United States.
Document 3: Great Recession: The Great Recession was a period of general economic decline observed in world markets during the late 2000s and early 2010s. The scale and timing of the recession varied from country to country. In terms of overall impact, the International Monetary Fund concluded that it was the worst global recession since the 1930s (the Great Depression). The causes of the recession largely originated in the United States, particularly related to the real-estate market, though choices made by other nations contributed as well. According to the U.S. National Bureau of Economic Research (the official arbiter of U.S. recessions) the recession, as experienced in that country, began in December 2007 and ended in June 2009, thus extending over 19 months. The Great Recession was related to the financial crisis of 2007–08 and U.S. subprime mortgage crisis of 2007–09. The Great Recession resulted in the scarcity of valuable assets in the market economy and the collapse of the financial sector (banks) in the world economy. The banks were then bailed out by American taxpayers.
Document 4: Depression of 1882–85: The Depression of 1882–85 or Recession of 1882–85 was an economic contraction in the United States that lasted from March 1882 to May 1885, according to the National Bureau of Economic Research. At 38 months in length this is the third-longest recession in the NBER's chronology of business cycles from 1854 to present. Only the Great Depression of 1929-1941 and the Long Depression of 1873–79 were longer.
Document 5: Great Divergence (inequality): The Great Divergence is a term given to a period in late 1970s, when income differences increased in the US and, to a lesser extent, in other countries. The term originated with Nobel laureate, Princeton economist and "New York Times" columnist Paul Krugman, and is a reference to the "Great Compression", an earlier era in the 1930s and the 1940s when incomes became more equal in the US and elsewhere.
Document 6: George B. Pegram: George Braxton Pegram (October 24, 1876 – August 12, 1958) was an American physicist who played a key role in the technical administration of the Manhattan Project. He graduated from Trinity College (now Duke University) in 1895, and taught high school before becoming a teaching assistant in physics at Columbia University in 1900. He was to spend the rest of his working life at Columbia, taking his doctorate there in 1903 and becoming a full professor in 1918. His administrative career began as early as 1913 when he became the department's executive officer. By 1918, he was Dean of the Faculty of Applied Sciences but he resigned in 1930 to relaunch his research activities, performing many meticulous measurements on the properties of neutrons with John R. Dunning. He was also chairman of Columbia's physics department from 1913 to 1945.
Document 7: Great Depression: The Great Depression was a severe worldwide economic depression that took place mostly during the 1930s, originating in the United States. The timing of the Great Depression varied across nations; in most countries it started in 1929 and lasted until 1941. It was the longest, deepest, and most widespread depression of the 20th century. In the 21st century, the Great Depression is commonly used as an example of how far the world's economy can decline.
Document 8: Early 1980s recession: The early 1980s recession describes severe global economic recession affecting much of the developed world in the late 1970s and early 1980s. The United States and Japan exited the recession relatively early, but high unemployment would continue to affect other OECD nations through to at least 1985. Long-term effects of the recession contributed to the Latin American debt crisis, the savings and loans crisis in the United States, and a general adoption of neoliberal economic policies throughout the 1980s and 1990s.
Document 9: Scientists and Engineers for Johnson–Humphrey: Scientists and Engineers for Johnson–Humphrey was a group of prominent scientists consisting of U.S. President Dwight D. Eisenhower's second adviser George Kistiakowsky, Kennedy adviser Jerome Wiesner and many scientists that took part in the Manhattan project. This group's sole purpose was to make sure that Barry Goldwater, whom Nobel Laureate Harold Urey called a "blustery, threatening man", was not elected president.
Document 10: Randolph Bromery: Randolph W. ("Bill") Bromery (January 18, 1926 – February 26, 2013) was an African-American educator and geologist, and a former Chancellor of the University of Massachusetts Amherst (1971–79). While Chancellor, Bromery established the W.E.B. Du Bois Archives at the University of Massachusetts, and was one of the initiators of the Five College Consortium. He was also President of the Geological Society of America, and has made numerous contributions as a geologist and academic. During World War II, he was a member of the Tuskegee Airmen, flying missions in Italy.
Document 11: James Lattimer: James Lattimer is a nuclear astrophysicist who works on the dense nuclear matter equation of state and neutron stars. He is a Distinguished Professor of Physics and Astronomy at Stony Brook University. He is an American Physical Society Fellow (2001),
Document 12: Ernest Lawrence: Ernest Orlando Lawrence (August 8, 1901 – August 27, 1958) was a pioneering American nuclear scientist and winner of the Nobel Prize in Physics in 1939 for his invention of the cyclotron. He is known for his work on uranium-isotope separation for the Manhattan Project, as well as for founding the Lawrence Berkeley National Laboratory and the Lawrence Livermore National Laboratory.
Document 13: Lyman James Briggs: Lyman James Briggs (May 7, 1874 – March 25, 1963) was an American engineer, physicist and administrator. He was a director of the National Bureau of Standards during the Great Depression and chairman of the Uranium Committee before America entered the Second World War. The Lyman Briggs College at Michigan State University is named in his honor.
Document 14: Financial crisis of 2007–2008: The financial crisis of 2007–2008, also known as the global financial crisis and the 2008 financial crisis, is considered by many economists to have been the worst financial crisis since the Great Depression of the 1930s.
Document 15: Post–World War I recession: The post–World War I recession was an economic recession that hit much of the world in the aftermath of World War I. In many nations, especially in North America, this growth continued during World War I as nations mobilized their economies to fight the war in Europe. After the war ended, the global economy began to decline. In the United States, 1918–1919 saw a modest economic retreat, but the next year saw a mild recovery. A more severe recession hit the United States in 1920 and 1921, when the global economy fell very sharply.
ground_truth: mostly during the 1930s