who was in office for the most amount of time?
walter gilbert campbell
col : no. | name | took office | left office | president served under | notable for row 1 : 1 | harvey washington wiley, m.d. | january 1, 1907 | march 15, 1912 | theodore roosevelt, william howard taft | chemist; advocacy of the passage of the pure food and drug act row 2 : 2 | carl l. alsberg m.d. | december 16, 1912 | july 15, 1921 | william howard taft, woodrow wilson, warren g. harding |  row 3 : 3 | walter gilbert campbell | 7/16/1921 | 6/30/1924 | warren g. harding, calvin coolidge |  row 4 : 4 | charles albert browne, jr. | 7/1/1924 | 6/30/1927 | calvin coolidge |  row 5 : 3 | walter gilbert campbell | 7/1/1927 | 4/30/1944 | calvin coolidge, herbert hoover, franklin d. roosevelt |  row 6 : 5 | paul b. dunbar, ph.d. | 5/6/1944 | 5/31/1951 | franklin d. roosevelt, harry s truman |  row 7 : 6 | charles w. crawford | 6/1/1951 | 7/31/1954 | harry s truman, dwight d. eisenhower |  row 8 : 7 | george p. larrick | 8/12/1954 | 12/27/1965 | dwight d. eisenhower, john f. kennedy, ly |  row 9 : 8 | james lee goddard, m.d. | 1/17/1966 | 7/1/1968 | lyndon b. johnson |  row 10 : 9 | herbert leonard ley, jr., m.d. | 7/1/1968 | 12/12/1969 | lyndon b. johnson, richard m. nixon |  row 11 : 10 | charles c. edwards, m.d. | 12/13/1969 | 3/15/1973 | richard m. nixon |  row 12 : 11 | alexander mackay schmidt, m.d. | 7/20/1973 | 11/30/1976 | richard m. nixon, gerald r. ford |  row 13 : 12 | donald kennedy, ph.d. | 4/4/1977 | 6/30/1979 | jimmy carter |  row 14 : 13 | jere edwin goyan, ph.d. | 10/21/1979 | 1/20/1981 | jimmy carter |  row 15 : 14 | arthur hull hayes jr., m.d. | 4/13/1981 | 9/11/1983 | ronald reagan |  row 16 : 15 | frank edward young, m.d., ph.d. | 7/15/1984 | 12/17/1989 | ronald reagan |  row 17 : 16 | david aaron kessler, m.d. | 11/8/1990 | 2/28/1997 | george h. w. bush\nbill clinton |  row 18 : 17 | jane ellen henney, m.d. | 1/17/99 | 1/19/2001 | bill clinton |  row 19 : 18 | mark barr mcclellan, m.d., ph.d | 11/14/2002 | 3/26/2004 | george w. bush |  row 20 : 19 | lester mills crawford, d.v.m., ph. | 7/18/2005 | 9/23/2005 | george w. bush | charged with conflict of interest and lying about stock he and his wife row 21 : 20 | andrew c. von eschenbach, m.d. | 12/13/2006 | 1/20/2009 | george w. bush | member of the board of directors of biotime (nyse mkt: row 22 : 21 | margaret a. hamburg, m.d. | 5/22/2009 | present | barack obama |
who was in office for the most amount of time?
No. Name Took Office Left Office President served under Notable for
1 Harvey Washington Wiley, M.D. January 1, 1907 March 15, 1912 Theodore Roosevelt, William Howard Taft Chemist; advocacy of the passage of the Pure Food and Drug Act in 1906; subsequent work at Good Housekeeping Institute laboratories
2 Carl L. Alsberg M.D. December 16, 1912 July 15, 1921 William Howard Taft, Woodrow Wilson, Warren G. Harding
3 Walter Gilbert Campbell 7/16/1921 6/30/1924 Warren G. Harding, Calvin Coolidge
4 Charles Albert Browne, Jr. 7/1/1924 6/30/1927 Calvin Coolidge
3 Walter Gilbert Campbell 7/1/1927 4/30/1944 Calvin Coolidge, Herbert Hoover, Franklin D. Roosevelt
5 Paul B. Dunbar, Ph.D. 5/6/1944 5/31/1951 Franklin D. Roosevelt, Harry S Truman
6 Charles W. Crawford 6/1/1951 7/31/1954 Harry S Truman, Dwight D. Eisenhower
7 George P. Larrick 8/12/1954 12/27/1965 Dwight D. Eisenhower, John F. Kennedy, Lyndon B. Johnson
8 James Lee Goddard, M.D. 1/17/1966 7/1/1968 Lyndon B. Johnson
9 Herbert Leonard Ley, Jr., M.D. 7/1/1968 12/12/1969 Lyndon B. Johnson, Richard M. Nixon
10 Charles C. Edwards, M.D. 12/13/1969 3/15/1973 Richard M. Nixon
11 Alexander Mackay Schmidt, M.D. 7/20/1973 11/30/1976 Richard M. Nixon, Gerald R. Ford
12 Donald Kennedy, Ph.D. 4/4/1977 6/30/1979 Jimmy Carter
13 Jere Edwin Goyan, Ph.D. 10/21/1979 1/20/1981 Jimmy Carter
14 Arthur Hull Hayes Jr., M.D. 4/13/1981 9/11/1983 Ronald Reagan
15 Frank Edward Young, M.D., Ph.D. 7/15/1984 12/17/1989 Ronald Reagan
16 David Aaron Kessler, M.D. 11/8/1990 2/28/1997 George H. W. Bush\nBill Clinton
17 Jane Ellen Henney, M.D. 1/17/99 1/19/2001 Bill Clinton
18 Mark Barr McClellan, M.D., Ph.D 11/14/2002 3/26/2004 George W. Bush
19 Lester Mills Crawford, D.V.M., Ph.D. 7/18/2005 9/23/2005 George W. Bush Charged with conflict of interest and lying about stock he and his wife owned in companies regulated by FDA.
20 Andrew C. von Eschenbach, M.D. 12/13/2006 1/20/2009 George W. Bush Member of the board of directors of BioTime (NYSE MKT: BTX), a biotechnology and regenerative medicine company.
21 Margaret A. Hamburg, M.D. 5/22/2009 present Barack Obama
Walter Gilbert Campbell