The man that built the FNRS-1 balloon died in what year?
Auguste Piccard Auguste Antoine Piccard (28 January 1884 – 24 March 1962) was a Swiss physicist, inventor and explorer, known for his record-breaking hot air balloon flights, with which he studied Earth's upper atmosphere and cosmic rays, and for his invention of the first bathyscaphe, "FNRS-2", with which he made a number of unmanned dives in 1948 to explore the ocean's depths.
Peter Mulgrew Peter David Mulgrew {'1': ", '2': ", '3': ", '4': "} (21 November 1927 – 28 November 1979) was a New Zealand mountaineer, yachtsman and businessman. He died in the crash of Air New Zealand Flight 901, an Antarctic sightseeing flight that slammed into Mount Erebus, killing all 257 on board. He was a commentator on the flight, having replaced his close friend Sir Edmund Hillary, who was on a scheduled speaking tour of the United States. In 1989 his widow, June, married Hillary.