Wernher Von Braun and John Glenn - Refusals Correspondence concerning requests from Roger Caras to rocket engineer Wernher Von Braun of the National Aeronautics and Space Administration [NASA] and to American astronaut Colonel John Glenn to appear in the prologue, along with their letters of refusal. Also included is a list marked 'SK copy - status book' with details of which scientists have agreed to take part, and noting that Von Braun and Glenn have refused. 28 Jan 1966-3 May 1966