Timeline: Koller, Unknown: Michael and Deborah Hervey's Genealogy

	Date	Event(s)
1	1913	4 Mar 1913—4 Mar 1921: Woodrow Wilson Woodrow Wilson U.S. Presidency
2	1921	4 Mar 1921—2 Aug 1923: Warren G. Harding Warren G. Harding U.S. Presidency
3	1923	2 Aug 1923—4 Mar 1929: Calvin Coolidge Calvin Coolidge U.S. Presidency
4	1929	4 Mar 1929—4 Mar 1933: Herbert Hoover Herbert Hoover U.S. Presidency
5	1933	4 Mar 1933—12 Apr 1945: Franklin D. Roosevelt Franklin D. Roosevelt U.S. Presidency
6	1941	7 Dec 1941—2 Sep 1945: World War II World War II
7	1945	12 Apr 1945—20 Jan 1953: Harry S. Truman Harry S. Truman U.S. Presidency
8	1950	25 Jun 1950—27 Jul 1953: Korean War Korean War
9	1953	20 Jan 1953—20 Jan 1961: Dwight D. Eisenhower Dwight D. Eisenhower U.S. Presidency
10	1959	26 Sep 1959—30 Apr 1975: Vietnam War Vietnam War
11	1961	20 Jan 1961—20 Nov 1963: John F. Kennedy John F. Kennedy U.S. Presidency
12	1963	20 Nov 1963—20 Jan 1969: Lyndon B. Johnson Lyndon B. Johnson U.S. Presidency
13	1969	20 Jan 1969—9 Aug 1974: Richard Nixon Richard Nixon U.S. Presidency
14	1974	9 Aug 1974—20 Jan 1977: Gerald Ford Gerald Ford U.S. Presidency
15	1977	20 Jan 1977—20 Jan 1981: Jimmy Carter Jimmy Carter U.S. Presidency
16	1981	20 Jan 1981—20 Jan 1989: Ronald Reagan Ronald Reagan U.S. Presidency
17	1989	20 Jan 1989—20 Jan 1993: George H. W. Bush George H. W. Bush U.S. Presidency
18	1990	2 Aug 1990—28 Feb 1991: Gulf War Gulf War
19	1993	20 Jan 1993—20 Jan 2001: Bill Clinton Bill Clinton U.S. Presidency