American pilot and physicist (1921-1966) who reached the edge of outer space on two separate X-15 aircraft flights in 1963; he tragically passed away when his F-104 Starfighter crashed during a publicity photo shoot. TLS, one page, 8 x 10.5, NASA letterhead, June 14, 1961. Letter to Mr. and Mrs. Ken Browne, in full: "I am very grateful for your continuing interest in our efforts with the X-15. I didn't write much before simply because of time. However, you are more than average interested in us and I think I'll get on the ball. My home is now in Lancaster, California, which is about 35 miles (house to work). Most of the working days are spent in and about Edwards Air Force Base. However, a surprising number of trips to give talks about the X-15 or confer on problems keep cropping up. Not the least of time consumers are T.V. appearances! I guess if I worked it right I could get a job there when I retire from flying! As a matter of interest, our climate up here on the 'desert' north of Los Angeles, is similar to that around Phoenix. I also took advanced flight training at Williams Field in 1943. So far the occasion to stop in Phoenix has not presented itself but I'll look you up when it does." In very good condition, with staple holes to the upper left corner, creasing to the corners and right edge, and an old tape stain though the first paragraph which doesn't affect readability. Accompanied by the original NASA mailing envelope.Format: TLS