Lewis David Einstein (1877–1967)

State of Residence: New York
  1. Envoy Extraordinary and Minister Plenipotentiary (Costa Rica)
    Appointed: July 6, 1911
    Presentation of Credentials: November 3, 1911
    Termination of Mission: Left post on December 29, 1911
  2. Envoy Extraordinary and Minister Plenipotentiary (Czechoslovakia)
    Appointed: October 8, 1921
    Presentation of Credentials: December 20, 1921
    Termination of Mission: Left post on February 1, 1930