Edward Samuel Ritchie

Edward Samuel Ritchie
Born(1814-08-18)August 18, 1814
Dorchester, Boston
Died1895 (aged 80–81)

Edward Samuel Ritchie (1814–1895), an American inventor and physicist, is considered to be the most innovative instrument maker in nineteenth-century America, making important contributions to both science and navigation.[1]

  1. ^ Warner, Deborah, Compasses and Coils: The Instrument Business of Edward S. Ritchie, Rittenhouse, Vol. 9, No. 1 (1994), pp. 1-24