John Bardeen · Donald Trump Were John Bardeen and Donald Trump alive at the same time? Yes. John Bardeen and Donald Trump were alive at the same time for 44 years, from 1946 to 1991. John Bardeen was 38 when Donald Trump was born.Donald Trump was 44 when John Bardeen died, aged 82. John BardeenAmerican physicist and engineerBorn 23 May 1908 · died 30 January 1991, aged 82Donald TrumpPresident of the United StatesBorn 14 June 1946 · living, 80 as of September 2026 Albert EinsteinAdolf HitlerJohn BardeenRonald ReaganDonald TrumpVladimir PutinMichael JacksonBarack Obama John Bardeen and Donald Trump in bold, with some of their best-known contemporaries. Drag across to see the age each reached in any year. Faded ends mark uncertain dates.