United States Secretaries of the Interior

Cecil Dale Andrus (August 25, 1931 – August 24, 2017) was an American politician who served as 26th and 28th governor of Idaho, for a total of fourteen years. A Democrat, he also served as U.S. Secretary of the Interior from 1977 to 1981 during the Carter Administration. Andrus lost his first gubernatorial election in 1966 but won four (in 1970, 1974, 1986, and 1990) and his fourteen years as governor is the most in state history. He is the most recent Democrat to have held the office.
In public life, Andrus was noted for his strong conservationist and environmental views and accomplishments, and an Idaho wildlife preserve established in 1993 in Washington County is named the Cecil D. Andrus Wildlife Management Area in his honor. In 2018, the Cecil D. Andrus–White Clouds Wilderness was renamed after him. A political liberal, he protected the environment by minimizing the control of business interests held over the public domain and by concentrating decision-making in the hands of experts in the Interior Department. He argued that environmentalism can and must coexist with positive economic development.

William Patrick Clark Jr. (October 23, 1931 – August 10, 2013) was an American rancher, judge, and public servant who served under President Ronald Reagan as the Deputy Secretary of State from 1981 to 1982, United States National Security Advisor from 1982 to 1983, and the Secretary of the Interior from 1983 to 1985.

Rogers Clark Ballard Morton (September 19, 1914 – April 19, 1979) was an American politician who served as the U.S. Secretary of the Interior and Secretary of Commerce during the administrations of presidents Richard Nixon and Gerald Ford, respectively. He also served as a member of the U.S. House of Representatives from Maryland.
Morton was born in Louisville, Kentucky, and moved to a farm on the Eastern Shore of Maryland in the early 1950s. In 1962, he was elected to the House of Representatives, in which capacity he established a pro-environment record. Morton would joke that his two middle initials stood for "Chesapeake Bay". In 1968, Morton played a major role in Richard Nixon's campaign for president, and was chosen by Nixon in 1969 to serve as chairman of the Republican National Committee.
In the elections of 1970, Morton was considered a strong candidate to challenge Joseph Tydings for his U.S. Senate seat from Maryland, but he chose instead to remain as chairman of the RNC. In 1971, President Nixon tapped Morton to serve as Secretary of the Interior, during which time he oversaw the construction of the Trans-Alaska Pipeline System and the 1973 oil crisis. Morton was the only person from the East Coast to serve as head of the Interior Department in the 20th century.Following Nixon's resignation due to the Watergate Scandal, Morton continued in his post in the Gerald Ford administration until 1975, when he was nominated to serve as Secretary of Commerce. From April to August 1976, Morton served as Ford's campaign manager in his bid for election. Morton retired from politics following Ford's election defeat. Three years later, he died of cancer at his home in Easton on the eastern shore of Maryland.