Jerry Hammack helped designed vehicles for space program, Obiturary, Houston Chronicle
"Jerome "Jerry" Hammack, an aeronautical engineer and member of the team that founded what is now the Johnson Space Center, died Monday of cancer. He was 85. Hammack also was associated with the design of the space capsule used in Project Mercury, NASA's first manned space program. He later had similar duties in the Gemini, Apollo, Skylab and shuttle projects."