Curtin University | Jane Curtin | Phyllis Curtin | RAAF Curtin | John Curtin | Curtin | Andrew Gregg Curtin | Winsor McCay | John Curtin School of Medical Research | Division of Curtin | Curtin, Australian Capital Territory | Camp Curtin | Tom Winsor | Vézeronce-Curtin | Richard Winsor | Nathaniel Winsor, Jr. House | Matt Curtin | Joseph Curtin | John Curtin College of the Arts | Dan Curtin | Curtin, Oregon | Camp Curtin (Harrisburg) | ''Bust of Andrew Gregg Curtin'' (1912), by Moses Jacob Ezekiel |
From 1983 to 1985, he served as the United States Ambassador to Costa Rica, advising the Central American government on economic policy.
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He has also served as an observer to the Russian presidential election of 2000 and several Latin American elections.
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Winsor also serves on several non-profit boards, including those of the William H. Donner Foundation, the Donner Canadian Foundation, the Hudson Institute, the Atlas Economic Research Foundation, and the Media Research Center, as well as the National Council of the American Council of Trustees and Alumni.