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 Rutherford Haldane
Dr Daniel Rutherford Haldane FRSE PRCPE LLD (27 March 1824 – 12 April 1887) was a prominent Scottish physician, who became president of the Royal College of Physicians of Edinburgh in 1881.