Crigler was a fellow with Duke University’s Center for International Development and Research and was a member of the Planning Committee for Carolina Friends of the Foreign Service.
[4] Crigler graduated magna cum laude from Harvard College (B.A., 1957) and speaks Spanish and French.
Future positions included consular officer at the U.S. Embassy in Mexico, 1964 - 1966; political officer at the U.S. Embassy in Kinshasa, Zaire, 1966 - 1967; American consul (resident) in Bukavu, Zaire, April to July 1967; American consul (nonresident) in Kisangani, Zaire, 1967 - 1969; political-economic officer at the U.S. Embassy in Libreville, Gabon, 1969 - 1970; and political adviser at the U.S. Mission to the Organization of American States in Washington, DC, 1970.
[2] As a result of a congressional fellowship, he served on the staff of Representative Frank Thompson (NJ) and then with Senator Lloyd Bentsen (TX).
He returned to Mexico in August 1974 as political officer at the Embassy, serving until he was appointed Ambassador to Kigali, Rwanda, in September 1976.