Willy Ley
(1906 - 1969)

Willy Otto Oskar Ley was a German-American science writer who helped to popularize rocketry, spaceflight, and natural history
Bibliography
Best in Children’s Books Volume 2 (1957)

A collection of stories, poems and articles, some of which have new and different illustrators.
Willy Ley
Various
Maud Petersham
Miska Petersham
Henry C. Pitz
Feodor Rojankovsky
Et al