Singer - The 'Boop-Oop-A-Doop' girl. Betty Boop's voice was based on hers. Several of her hit songs were: I Wanna Be Loved By You, Button Up Your Overcoat, Me & The Man In The Moon, Do Something, I Want To Be Bad, That's My Weakness Now

German-American science writer, spaceflight advocate, and historian of science who helped popularize rocketry, spaceflight, and natural history in both Germany and the United States. The crater Ley on the far side of the Moon is named in his honor