The John W. Coltman Archive
Series 4. Correspondence
Correspondence is filed by date. Much correspondence concerning specific projects is contained in Series 5, Notes, Data, Calculations. The correspondence filed here largely consists of inquiries resulting from publications, together with replies, many of which have some technical content.
4.01 Correspondence 1959 - 1979
4.02 Correspondence 1980 - 1989
4.03 Correspondence 1990 - 1994