Mrazek was the 1978 recipient of the Oberth Award. During his career, Mrazek worked on the design and development of the Jupiter ICBM, Jupiter-C, and Saturn launch vehicles. He retired from Marshall Space Flight Center as the Associate Director for Engineering in Project Development in 1973.
Given by Auburn University president Ralph Brown Draughon, the citation notes Mrazek's accomplishments as "Marshall Space Flight Center's chief engineer."
This booklet, a Meldungsbuch, is a record of Mrazek's enrollment at Deutsche Technische Hochschule Brünn (German Technical University in Brünn, Czechoslovakia, now Brno, Czech Republic), where he received an MS in Engineering in 1934. The booklet identifies his courses and professors and includes a photograph of Mrazek.