(1912-2007) First Lady of the United States (1963-69) as the wife of the 36th President, Lyndon B. Johnson. T.L.S. on White House letterhead, 1p. 8vo., Washington, D.C., March 26, 1964, sent to NASA Administrator James Webb. In part: ‘...Words cannot fully describe the ever-lasting impressions I will carry with me of my visit to the Marshall Space Flight Center...the most important sights, of course, were the static test firings...It was inspiring, too, to see the significant part that women are playing in this major space effort...personal thanks to you and all the members of your tremendously important Agency...’ Pinholes at the top edge, else fine.