Peter Joel Yeingst was born on March 1, 1941 to Woodrow and Charlotte Yeingst of Elverson, Pennsylvania. He was one of three children.
Peter graduated in 1959 from Twin Valley High School. He was very active school, participating in band, chorus, soccer, yearbook staff, and many other activities. He also served as Vice President, and later, as President of his class.
Peter graduated in 1963 from Penn State with a degree in mechanical engineeirng. He was also a member of the Air Force ROTC. At the time of his graduation he was awarded his wings as a pilot and commissioned as a Second Lieutenant into the Airforce Reserves.