Stratospheric balloons of the 50's : looking for photos, drawings etc...

Hi

i'm fascinating with the balloon stratospheric flights of the fifties
(projects Man High, Strato Lab, Excelsior...) and the adventures of
David Simons, Joe Kittinger, Ross and Prather and so on...

I'm looking for photos, reproductions of drawings (technical or not,
even for children books) , or all graphical material about
pre-astronauts and their gondolas, url of sites about this subject,
brochures...

PS : i know the existence of the book "the pre-astronauts", but it
lacks with illustrations sadly