Better known as Lady Bird, she was the widow of President Lyndon Johnson, and she was a force beyond the role of First Lady.

As first lady, she was perhaps best known as the determined environmentalist who wanted roadside billboards and junkyards replaced with trees and wildflowers. She raised hundreds of thousands of dollars to beautify Washington. The $320 million Highway Beautification Bill, passed in 1965, was known as “The Lady Bird Bill,” and she made speeches and lobbied Congress to win its passage.

“Had it not been for her, I think that the whole subject of the environment might not have been introduced to the public stage in just the way it was and just the time it was. So she figures mightily, I think, in the history of the country if for no other reason than that alone,” Harry Middleton, retired director of the LBJ Library and Museum, once said.

Lady Bird Johnson once turned down a class valedictorian’s medal because of her fear of public speaking, but she joined in every one of her husband’s campaigns. She was soft-spoken but rarely lost her composure, despite heckling and grueling campaign schedules. She once appeared for 47 speeches in four days.

“How Lady Bird can do all the things she does without ever stubbing her toe, I’ll just never know, because I sure stub mine sometimes,” her husband once said.

Lady Bird Johnson said her husband “bullied, shoved, pushed and loved me into being more outgoing, more of an achiever. I gave him comfort, tenderness and some judgment — at least I think I did.”