US GOVERNMENT OFFICE

Chief officer of the US Interior Department.

8-Mar-1849	22-Jul-1850	Thomas Ewing	(under Zachary Taylor and Millard Fillmore)
15-Aug-1850	26-Aug-1850	Thomas McKean Thompson McKennan	(under Millard Fillmore)
14-Sep-1850	7-Mar-1853	Alexander Hugh Holmes Stuart	(under Millard Fillmore)
8-Mar-1853	9-Mar-1857	Robert McClelland	(under Franklin Pierce)
10-Mar-1857	8-Jan-1861	Jacob Thompson	(under James Buchanan)
5-Mar-1861	31-Dec-1862	Caleb Blood Smith	(under Abraham Lincoln)
1-Jan-1863	15-May-1865	John Palmer Usher	(under Abraham Lincoln)
16-May-1865	31-Aug-1866	James Harlan	(under Andrew Johnson)
1-Sep-1866	4-Mar-1869	Orville Hickman Browning	(under Andrew Johnson)
5-Mar-1869	31-Oct-1870	Jacob Dolson Cox	(under Ulysses S. Grant)
1-Nov-1870	30-Sep-1875	Columbus Delano	(under Ulysses S. Grant)
19-Oct-1875	11-Mar-1877	Zachariah Chandler	(under Ulysses S. Grant)
12-Mar-1877	7-Mar-1881	Carl Schurz	(under Rutherford B. Hayes)
8-Mar-1881	17-Apr-1882	Samuel J. Kirkwood	(under James Garfield and Chester A. Arthur)
18-Apr-1882	3-Mar-1885	Henry Moore Teller	(under Chester A. Arthur)
6-Mar-1885	10-Jan-1888	Lucius Q. C. Lamar	(under Grover Cleveland)
16-Jan-1888	6-Mar-1889	William Freeman Vilas	(under Grover Cleveland)
7-Mar-1889	6-Mar-1893	John W. Noble	(under Benjamin Harrison)
6-Mar-1893	1-Sep-1896	Michael Hoke Smith	(under Grover Cleveland)
3-Sep-1896	5-Mar-1897	David Rowland Francis	(under Grover Cleveland)
6-Mar-1897	19-Feb-1899	Cornelius Newton Bliss	(under William McKinley)
20-Feb-1899	4-Mar-1907	Ethan A. Hitchcock	(under William McKinley and Theodore Roosevelt)
5-Mar-1907	5-Mar-1909	James Rudolph Garfield	(under Theodore Roosevelt and William Howard Taft)
6-Mar-1909	12-Mar-1911	Richard A. Ballinger	(under William Howard Taft)
13-Mar-1911	5-Mar-1913	Walter Lowrie Fisher	(under William Howard Taft)
6-Mar-1913	29-Feb-1920	Franklin K. Lane	(under Woodrow Wilson)
15-Mar-1920	4-Mar-1921	John Barton Payne	(under Woodrow Wilson)
5-Mar-1921	4-Mar-1923	Albert Fall	(under Warren G. Harding)
5-Mar-1923	24-Jul-1928	Hubert Work	(under Warren G. Harding and Calvin Coolidge)
25-Jul-1928	4-Mar-1929	Roy Owen West	(under Calvin Coolidge)
5-Mar-1929	4-Mar-1933	Ray Lyman Wilbur	(under Herbert Hoover)
4-Mar-1933	15-Feb-1946	Harold Ickes	(under Franklin D. Roosevelt and Harry S. Truman)
18-Mar-1946	1-Dec-1949	Julius Albert Krug	(under Harry S. Truman)
1-Dec-1949	20-Jan-1953	Oscar L. Chapman	(under Harry S. Truman)
21-Jan-1953	15-Apr-1956	Douglas McKay	(under Dwight D. Eisenhower)
8-Jun-1956	20-Jan-1961	Fred A. Seaton	(under Dwight D. Eisenhower)
21-Jan-1961	20-Jan-1969	Stewart Udall	(under John F. Kennedy and Lyndon B. Johnson)
24-Jan-1969	25-Nov-1970	Walter J. Hickel	(under Richard M. Nixon)
29-Jan-1971	30-Apr-1975	Rogers C.B. Morton	(under Richard M. Nixon and Gerald Ford)
12-Jun-1975	9-Oct-1975	Stanley K. Hathaway	(under Gerald Ford)
17-Oct-1975	20-Jan-1977	Thomas S. Kleppe	(under Gerald Ford)
23-Jan-1977	20-Jan-1981	Cecil D. Andrus	(under Jimmy Carter)
23-Jan-1981	8-Nov-1983	James Watt	(under Ronald Reagan)
18-Nov-1983	7-Feb-1985	William P. Clark	(under Ronald Reagan)
8-Feb-1985	20-Jan-1989	Donald Hodel	(under Ronald Reagan)
3-Feb-1989	20-Jan-1993	Manny Lujan	(under George H.W. Bush)
22-Jan-1993	2-Jan-2001	Bruce Babbitt	(under Bill Clinton)
31-Jan-2001	31-Mar-2006	Gale A. Norton	(under George W. Bush)
26-May-2006	20-Jan-2009	Dirk Kempthorne	(under George W. Bush)
21-Jan-2009	12-Apr-2013	Ken Salazar	(under Barack Obama)
12-Apr-2013	20-Jan-2017	Sally Jewell	(under Barack Obama)
1-Mar-2017	--	Ryan Zinke	(under Donald Trump)

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