James Slattin Martin, Jr.

James Slattin Martin, Jr. (1920-06-21 – 2002-04-14) was project manager for the Viking program.

Biography
As Viking 1 landed on Mars, Martin hung up on a call from President Ford, telling him that he was "busy right now" and to call back in three hours. The President called back three hours later at which time Martin, along with then-NASA Administrator Jim Fletcher, briefed him on the landing.