Louis G. Dunn (1908-1979), 3rd director of the Jet Propulsion Laboratory. In this 1947 photo, Dunn is shown doing last minute adjustments on a Corporal missile at the White Sands Missile Range in New Mexico, shortly before it is launched.
The NASA website hosts a large number of images from the Soviet/Russian space agency, and other non-American space agencies. These are not necessarily in the public domain.
The SOHO (ESA & NASA) joint project implies that all materials created by its probe are copyrighted and require permission for commercial non-educational use. [2]