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.
Frank Barnwell Captain Frank Sowter Barnwell OBE AFC FRAeS BSc (1880 – 2 August 1938) was a British aeronautical engineer. With his elder brother Harold he built the first successful powered aircraft made in Scotland and later went on to a career as an aircraft designer with the Bristol Aeroplane Company, designing aircraft such as the Bristol Fighter, the Bulldog and the Blenheim.