Consists of correspondence falling mostly between the years 1972 and 1985 from various individuals to William H. Natcher. The individuals include government agency administrators, members of Congress, Democratic Party officials, leaders of interest groups and unions, Kentucky state leaders, and celebrities. Much of the correspondence pertains to matters of Congressional appropriations and legislation. The correspondence is arranged alphabetically by name of correspondent.
This series contains materials used by O'Leary while he was preparing for his post in Chile. The Chile Notebooks were filled with articles related to Chile, organized by subject. The series also contains correspondence congratulating O'Leary on his nomination and commenting on his upcoming assignment. The series ends with materials from O'Leary's White House Swearing-in and Reception.