The United States Department of the Interior (DI) is a federal executive department of the U.S. government. It is responsible for the management and conservation of most federal lands and natural resources, and the administration of programs relating to Native Americans, Alaska Natives, Native Hawaiians, territorial affairs, and insular areas […]

Parties   Whig (3)   Democratic (16)   Republican (33) Status   Denotes acting Secretary of the Interior Number Portrait Name State of Residence Took office Left office President(s) 1 Thomas Ewing Ohio March 8, 1849 July 22, 1850 Zachary Taylor Millard Fillmore 2 Thomas M. T. McKennan Pennsylvania August 15, 1850 August 26, […]