John Robert Graham Pitkin (1841–1901)

State of Residence: Louisiana
  1. Envoy Extraordinary and Minister Plenipotentiary (Argentina)
    Appointed: July 26, 1889
    Presentation of Credentials: October 31, 1889
    Termination of Mission: Left post on August 15, 1893
    • Commissioned to the Argentine Republic. Commissioned during a recess of the Senate; recommissioned on January 9, 1890, after confirmation.