Christopher Columbus

New World explorer who discovered the Americas in 1492 and South America in 1498, European navigator, British Columbia, D.C. (District of Columbia) and Columbus (Ohio/Georgia), etc. are in his name
1451-1506 (55)
biography.com

Elvina Pallavicini

Princess, noblewoman, heiress of the Pallavicini family dynasty
1914-2004 (90)

James (JLM) Smithson

Chemist aka JLM Smithson, geologist, mineralogist, publisher for the Royal Society and namesake founder of the Smithsonian museums (or Smithsonian Institution) with a gift of 100,000 gold sovereigns (about $5 each) to the Philadelphia mint in a charitable trust, which is now the largest of all educational museums in the world
1765-1829 (64)
siarchives.si.edu