William Insco Buchanan (1853–1909)

States of Residence: Iowa, New York
  1. Envoy Extraordinary and Minister Plenipotentiary (Argentina)
    Appointed: January 26, 1894
    Presentation of Credentials: May 19, 1894
    Termination of Mission: Left post on July 11, 1899
    • Commissioned to the Argentine Republic.
  2. Envoy Extraordinary and Minister Plenipotentiary (Panama)
    Appointed: December 17, 1903
    Termination of Mission: Left Panama February 2, 1904
    • Buchanan had presented credentials as Envoy Extraordinary and Minister Plenipotentiary on special mission in December 1903; he received new credentials as Envoy Extraordinary and Minister Plenipotentiary only a few days before he was to leave Panama and apparently did not present them. He ceased to act “on special mission,” however, and conducted business in the capacity of Envoy Extraordinary and Minister Plenipotentiary until his departure.