The McKennans
- Thomas McKean Thompson McKennan (1794–1852), U.S. Representative from Pennsylvania 1831–1839 1842–1843, U.S. Secretary of the Interior 1850. Father of William McKennon.
- William McKennon (1816–1893), Judge of the U.S. Court of Appeals 1869–1891. Son of Thomas McKean Thompson McKennan.
Read more about this topic: List Of United States Political Families (M)