Peter Alway has published a new booklet, "Selected USAF Missiles of the Cold War". I purchased mine from Aerospace Specialty Products. There is a lot of information on the early Atlas missile, etc. I remember growing up in those days. The US was having rocket failures all the time. It could not have been comforting to the original Mercury astronauts to see those Atlas failures.
https://www.asp-rocketry.com/ecomme...Cold-War.cfm?item_id=2425&parent=22&navPanel=
https://www.asp-rocketry.com/ecomme...Cold-War.cfm?item_id=2425&parent=22&navPanel=