Were Jacobus Henricus van 't Hoff and Ronald Reagan alive at the same time?
Yes. Jacobus Henricus van 't Hoff and Ronald Reagan were alive at the same time for 0 years, from 1911 to 1911.
Jacobus Henricus van 't Hoff was 58 when Ronald Reagan was born.
Ronald Reagan was under a year old when Jacobus Henricus van 't Hoff died, aged 58.
Jacobus Henricus van 't Hoff
Dutch physical and organic chemist
Born 30 August 1852 · died 1 March 1911, aged 58
Ronald Reagan
President of the United States from 1981 to 1989 and actor
Born 6 February 1911 · died 5 June 2004, aged 93