Which First Lady promoted highway beautification and wildflowers?

Which First Lady later served as a U.S. delegate to the United Nations and chaired the drafting of the Universal Declar… Which First Lady led a televised tour of the White House in 1962? Which First Lady launched the "Just Say No" anti-drug campaign? Which First Lady founded a famous clinic for addiction recovery? Which former First Lady became a U.S. senator from New York and Secretary of State? Which First Lady launched the "Let's Move!" campaign against childhood obesity? Which First Lady was a former librarian and teacher who promoted literacy? Which First Lady continued working as a college English professor while in the White House?