The Edward Douglass White House, also known as Edward Douglass White Louisiana State Commemorative Area, is a state historic site near Thibodaux, Louisiana. The house was home to both Edward Douglass White, Sr., the tenth governor of the state of Louisiana, and his son, Edward Douglass White, a U.S. senator and a Chief Justice of the United States. It was designated a National Historic Landmark in 1976 for its association with the latter White, who was in the 7-1 majority ruling on Plessy v. Ferguson, 163 U.S. 537 (1896), a landmark decision of the U.S. Supreme Court that upheld the constitutionality of racial segregation laws for public facilities in a doctrine that came to be known as "separate but equal."