Clarence A. Boonstra (January 5, 1914 – March 20, 2006)[1][2] was the US Ambassador to Costa Rica from 1967 to 1969.[3] His tours of duty also covered Brazil, Mexico and Philippines.
During the rule of Juan Perón, he served in Argentina and in Cuba as guerrilla fighters under Fidel Castro that battled to overthrow the Batista government.[4]
From 1967 to 1969, he served as ambassador to Costa Rica.[5] He retired from the Foreign Service in 1974.
He died of pneumonia on March 20, 2006 at age 92 in Gainesville, Florida.[6]