John William Strutt · Adolf Hitler Were John William Strutt and Adolf Hitler alive at the same time? Yes. John William Strutt and Adolf Hitler were alive at the same time for 30 years, from 1889 to 1919. John William Strutt was 46 when Adolf Hitler was born.Adolf Hitler was 30 when John William Strutt died, aged 76. John William StruttEnglish physicistBorn 12 November 1842 · died 30 June 1919, aged 76Adolf HitlerDictator of Germany from 1933 to 1945Born 20 April 1889 · died 30 April 1945, aged 56 Abraham LincolnKarl MarxJohn William StruttMahatma GandhiVladimir LeninAlbert EinsteinAdolf HitlerRonald ReaganNelson Mandela John William Strutt and Adolf Hitler 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.