Foreign travels of the Secretaries of State, 1866-1990Evan M Duncan · First published 1990 · Latest edition 1991Open the Tome
Visits abroad of the Presidents of the United States, 1906-1989Evan M. Duncan · First published 1990Open the Tome
Lists of visits of Presidents of the United States to foreign countries, 1789-1983Evan M Duncan · First published 1983Open the Tome
