For several years now I have been greeted at church by a pleasant older usher, never dreaming that his brother was a science fiction giant: Matt Jeffries !! Richard Jeffries has written a book about his famous brother. http://www.mattjefferies.com/wmjb.html

The book is "Beyond the Clouds"

Matt flew a "secret reconnaissance bomber" during WWII, build airplanes, designed the Enterprise (THE Enterprise), worked on many TV shows and a few movies.

I haven't read the book yet but it sounds excellent.