Daniel Rutherford
Daniel Rutherford (3 November 1749 – 15 December 1819) was a Scottish physician, chemist and botanist who is most famous for the isolation of nitrogen in 1772.
Daniel Dana
The Rev. Daniel Dana (July 24, 1771 – August 26, 1859) was a minister in Newburyport, Massachusetts, and president of Dartmouth College from 1820 to 1821. He graduated from Dartmouth in the class of 1788.