Were Francis Crick and Barack Obama alive at the same time?
Yes. Francis Crick and Barack Obama were alive at the same time for 42 years, from 1961 to 2004.
Francis Crick was 45 when Barack Obama was born.
Barack Obama was 42 when Francis Crick died, aged 88.
Francis Crick
British molecular biologist, biophysicist, neuroscientist; co-discoverer of the structure of DNA
Born 8 June 1916 · died 28 July 2004, aged 88