NASA Engineer & Nurse Bond Over History
- A routine health check turned into a trip down memory lane for John stonesifer, a former NASA engineer.
- McDaniels soon learned that Stonesifer's Houston home was filled with photos of him alongside presidents and astronauts like Neil Armstrong and Buzz Aldrin.
- Stonesifer recalled the immense Saturn V rocket used for the moon missions and the concerns about potential unknown pathogens from the Moon.
Former NASA engineer John Stonesifer, a key figure in the Apollo 11 mission, and his nurse, Dereka McDaniels, found common ground during a routine health check. Stonesifer’s interest with a blood pressure device sparked vivid recollections of his crucial work developing quarantine procedures to protect Earth from lunar pathogens. His legacy includes creating the Apollo 11 mobile quarantine unit (MQU) and establishing safety protocols for returning astronauts. This interesting story showcases how Stonesifer, even at 94, remains deeply engaged with space exploration, recently consulting on the OSIRIS-Rex mission. News Directory 3 is proud to share this inspiring look at the intersection of history and technology. Discover what’s next for this remarkable engineer and the future of space exploration.
Apollo 11 Engineer’s Blood Pressure Device Sparks NASA Memories
Updated May 30, 2025
A routine health check turned into a trip down memory lane for John stonesifer, a former NASA engineer. Dereka McDaniels,a home health nurse with AccentCare,was using a blood pressure device when Stonesifer,who contributed to the Apollo 11 mission,expressed interest in taking it apart to understand how it worked.
McDaniels soon learned that Stonesifer’s Houston home was filled with photos of him alongside presidents and astronauts like Neil Armstrong and Buzz Aldrin. Stonesifer explained his work with NASA, focusing on the Mercury, Gemini, and Apollo programs. His primary responsibility involved ensuring the safe recovery of astronauts after they splashed down in the ocean.
Stonesifer recalled the immense Saturn V rocket used for the moon missions and the concerns about potential unknown pathogens from the Moon. “One of the chief scientists told me, ‘Stoney, we just don’t know, but it could be catastrophic,'” he said.
To address this, Stonesifer developed the Apollo 11 mobile quarantine unit (MQU), built from an Airstream trailer. Astronauts would enter the MQU for 21 days immediately after landing. He also established protocols for President Nixon’s visit to the recovery ship, including a contingency plan to whisk the president away if quarantine procedures were breached.
After the Apollo 11 mission,the astronauts remained in quarantine,and lunar samples were carefully decontaminated. These procedures were repeated for Apollo 12, but deemed unnecessary by Apollo 14 after scientists determined the Moon posed no contamination risk.
Even now, at 94, Stonesifer remains engaged with space exploration. He was recently consulted by the OSIRIS-Rex mission team about containment procedures for the Bennu asteroid samples. “They were right on target,” Stonesifer said of their protocols.
stonesifer eventually acquired the blood pressure device and tested its accuracy against other models. “These machines have come a long way!” he noted, adding he now wants to know what Johnson Space Center uses on astronauts during missions.
McDaniels said she felt a connection to Stonesifer through his NASA experiences, noting the similarities between NASA’s meticulous planning and AccentCare’s patient care approach.
What’s next
With renewed interest in lunar missions and potential Mars exploration, Stonesifer’s expertise and curiosity remain relevant as space agencies refine safety and containment procedures for future missions.