Sir William Gore Ouseley was a British diplomat who served in various roles in Washington, D.C., Rio de Janeiro and Buenos Aires. His main achievement were negotiations concerning ownership of Britain's interests in what is now Honduras and Nicaragua.

Cornelius Peter Van Ness was an American politician and diplomat who served as the tenth governor of Vermont from 1823 to 1826 and Envoy Extraordinary and Minister Plenipotentiary to the Kingdom of Spain from 1829 to 1836. Van Ness was a Democratic-Republican and later a Democrat.