William Harrison Hornibrook (1884-1946)
Non-career appointee
States of Residence: Oregon, Utah
- Envoy Extraordinary and Minister Plenipotentiary (Thailand)
Appointed: February 12, 1915
Presentation of Credentials: May 31, 1915
Termination of Mission: Presented recall October 24, 1916
- Envoy Extraordinary and Minister Plenipotentiary (Iran)
Appointed: December 12, 1933
Presentation of Credentials: March 19, 1934
Termination of Mission: Left post March 16, 1936
- Commissioned during a recess of the Senate; recommissioned after confirmation on
Jan 15, 1934. Also accredited to Afghanistan; resident at Tehran.
- Envoy Extraordinary and Minister Plenipotentiary (Afghanistan)
Appointed: January 22, 1935
Presentation of Credentials: May 4, 1935
Termination of Mission: Left Tehran March 16, 1936
- Accredited also to Persia; resident at Tehran.
- Envoy Extraordinary and Minister Plenipotentiary (Costa Rica)
Appointed: July 2, 1937
Presentation of Credentials: September 2, 1937
Termination of Mission: Relinquished charge September 1, 1941