Correspondence Files
The Correspondence Files are arranged alphabetically. Some papers are arranged according to the sender, some according to the receiver, some by the subject and some by the sending or receiving agency. Therefore if a researcher is looking for correspondence between Engstrom and a given individual, it may be necessary to look in several places. For example, letters to and from Charles Anspach, president of Central Michigan University can be found filed under both 'A' for Anspach and 'C' for Central Michigan. In addition, although this is a correspondence series, certain non-correspondence material may be found among the papers.