The group gave out autographs during their visit to Redstone Arsenal in 1959. A news clipping with a photograph of five of the seven astronauts in Huntsville is attached.
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.