Harvard University alumni

Dudley Robert Herschbach (born June 18, 1932) is an American chemist at Harvard University. He won the 1986 Nobel Prize in Chemistry jointly with Yuan T. Lee and John C. Polanyi "for their contributions concerning the dynamics of chemical elementary processes". Herschbach and Lee specifically worked with molecular beams, performing crossed molecular beam experiments that enabled a detailed molecular-level understanding of many elementary reaction processes. Herschbach is a member of the Board of Sponsors of the Bulletin of the Atomic Scientists.

Joseph Leo Doob (February 27, 1910 – June 7, 2004) was an American mathematician, specializing in analysis and probability theory.
The theory of martingales was developed by Doob.

Martin Stuart Feldstein ( FELD-styne; November 25, 1939 – June 11, 2019) was an American economist. He was the George F. Baker Professor of Economics at Harvard University and the president emeritus of the National Bureau of Economic Research (NBER). He served as president and chief executive officer of the NBER from 1978 to 2008 (with the exception of 1982 to 1984). From 1982 to 1984, Feldstein served as chairman of the Council of Economic Advisers and as chief economic advisor to President Ronald Reagan (where his deficit hawk views clashed with the Reagan administration's large military expenditure policies). Feldstein was also a member of the Washington-based financial advisory body the Group of Thirty from 2003.

Conan Christopher O'Brien (born April 18, 1963) is an American television host, comedian, writer, and producer. He is best known for having hosted late-night talk shows for almost 28 years, beginning with Late Night with Conan O'Brien (1993–2009) and The Tonight Show with Conan O'Brien (2009–2010) on the NBC television network, and Conan (2010–2021) on the cable channel TBS. Before his hosting career, O'Brien was a writer for the NBC sketch comedy series Saturday Night Live from 1988 to 1991, and the Fox animated sitcom The Simpsons from 1991 to 1993. He has also been host of the podcast series Conan O'Brien Needs a Friend since 2018 and is set to launch a travel show, Conan O'Brien Must Go, on Max.
Born in Brookline, Massachusetts, O'Brien was raised in an Irish Catholic family. He served as president of The Harvard Lampoon while attending Harvard University, and was a writer for the sketch comedy series Not Necessarily the News. After writing for several comedy shows in Los Angeles, he joined the writing staff of Saturday Night Live. O'Brien was a writer and producer for The Simpsons for two seasons until he was selected by Lorne Michaels and NBC to take over David Letterman's position as host of Late Night in 1993. Despite unfavorable reviews and threats of cancellation in the show's first years, O'Brien and the show developed and became highly regarded, earning a Primetime Emmy Award for Outstanding Writing for a Variety Series. He hosted Late Night for 16 years, and as of 2023 is still the longest-serving host in the history of the franchise.
In 2009, O'Brien moved from New York to Los Angeles to host his own incarnation of The Tonight Show for seven months until highly publicized network politics prompted a host change in 2010. After this departure, O'Brien hosted a 32-city live comedy tour titled The Legally Prohibited from Being Funny on Television Tour, which was the subject of the documentary Conan O'Brien Can't Stop (2011). He then hosted Conan from 2010 to 2021. Throughout his career, he has also hosted a number of awards shows and television specials, including the Emmy Awards in 2002 and 2006 and the White House Correspondents' dinner in 1995 and 2013. Conan was named one of Time's 100 Most Influential People in 2010.Known for his spontaneous hosting style, which has been characterized by The New York Times as "awkward, self-deprecating humor", O'Brien's late-night programs combine the "lewd and wacky with more elegant, narrative-driven short films". His segments outside the studio, dubbed "remotes", have also become some of his best-received work, including the international travel series Conan Without Borders. With the retirement of David Letterman on May 20, 2015, O'Brien became the longest-working late-night talk show host active in the United States. This active streak ended with O'Brien's retirement from late-night television in June 2021, with his entire run as a late-night host lasting almost 28 years.

Roy Mark Hofheinz Jr. (born 1935) is an American academic, sinologist who was Professor of Government at Harvard University. He is best-known for his work on the Chinese Communist Revolution.

Owen Jay Gingerich (; March 24, 1930 – May 28, 2023) was an American astronomer who had been professor emeritus of astronomy and of the history of science at Harvard University and a senior astronomer emeritus at the Smithsonian Astrophysical Observatory. In addition to his research and teaching, he had written many books on the history of astronomy.
Gingerich was also a member of the American Academy of Arts and Sciences, the American Philosophical Society, and the International Academy of the History of Science. A committed Christian, he had been active in the American Scientific Affiliation, a society of evangelical scientists. He served on the board of trustees of the Templeton Foundation.

Elting Elmore Morison (December 14, 1909, Milwaukee, Wisconsin – April 20, 1995, Peterborough, New Hampshire) was an American historian of technology, military biographer, author of nonfiction books, and essayist. He was an MIT professor and the founder of MIT's Science, Technology, and Society (STS) program.

Christopher Hallowell Phillips (December 6, 1920 – January 10, 2008) was an American diplomat and politician who served as United States Ambassador to Brunei and was a member of the Massachusetts Senate.

Craig Call Black (1932–1998) was an American paleontologist noted for his studies of the vertebrate mammals of the Ice Age. He served as the director of the Museum of Texas Tech University 1972-1975, Carnegie Museum of Natural History 1975-1982 and the Natural History Museum of Los Angeles County 1982-1994. In 1982, President Ronald Reagan appointed him to serve on the National Museum Services Board. In 1985, Reagan nominated him to serve on the National Science Board for a period of five years succeeding David V. Ragone. In 1991, President George H. W. Bush appointed him to serve on the Environment for the Americas Board.

David Darryl Galloway (born 5 May 1937 – 28 December 2019) was an American novelist, curator, journalist and academic. A graduate of Harvard University, he was the founding curator of the Tehran Museum of Contemporary Art, a longtime contributor to the International Herald Tribune, an emeritus professor at the Ruhr University Bochum and a fellow of the Royal Society of Arts. The last decades of his life he resided in both France (Forcalquier) and Germany.