National Park Service: Administrative History-Organizational Structures (1917-1985)

Organizational Structure of the National Park Service
- 1917 to 1985 -

Administrative History

1917	Text Chart	05-23-1951 to 12-09-1951	Text Chart
07-01-1919	Text Chart	12-10-1951 to 09-09-1954	Text Chart
1925	Text Chart	09-10-1954 to 10-01-1956	Text Chart
1926	Text Chart	10-02-1956 to 08-05-1957	Text Chart
07-01-1927	Text Chart	08-06-1957 to 12-03-1961	Text Chart
1928	Text Chart	12-04-1961 to 12-16-1965	Text Chart
1930 to 10-14-1931	Text Chart	12-17-1965 to 07-09-1968	Text Chart
10-15-1931 to 06-30-1932	Text Chart	07-10-1968 to 08-03-1969	Text Chart
07-01-1932	Text Chart	08-04-1969 to early 1970	Text Chart
1933 to 12-05-1934	Text Chart	early 1970 to mid-year 1971	Text Chart
12-06-1934 to 10-09-1935	Text Chart	mid-year 1971 to 03-29-1972	Text Chart
10-10-1935 to 09-30-1936	Text Chart	03-30-1972 to 09-18-1973	Text Chart
09-30-1936 to 07-01-1937	Text Chart	09-19-1973 to 05-13-1976	Text Chart
07-01-1937 to 09-30-1938	Text Chart	05-14-1976 to 07-19-1978	Text Chart
08-01-1938 to 06-30-1941	Text Chart	07-20-1978 to 06-22-1981	Text Chart
07-01-1941 to 06-30-1943	Text Chart	06-23-1981 to 01-03-1982	Text Chart
07-01-1943 to 12-01-1946	Text Chart	01-04-1982 to 02-25-1983	Text Chart
12-02-1946 to 06-30-1948	Text Chart	02-26-1983 to	Text Chart
07-01-1948 to 12-26-1949	Text Chart	Naturalists, Rangers, & Historians	Text Chart
12-27-1949 to 05-22-1951	Text Chart	Administrative	Text Chart

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