I don't have much to add to the coverage of Lady Bird Johnson's demise. She was a campaigner for civil rights, champion of the environmental movement, opponent of "homogenization," and she married one of the most cantankerous bastards ever to hold the office of President of the United States. Pretty impressive for one lifetime.
And she's the only First Lady I ever met. Even then, 20 years removed from the White House, she was a hell of a nice lady. It didn't even bother me when her Secret Service escort elbowed me out of the way.