The Correspondence Series is organized chronologically with a few exceptions. The correspondence is by no means comprehensive. More than half of the correspondence covers the first six months of 1967. There is a small number of letters from 1975 and 1977 and a substantial number of letters from 1974. Many of the letters have a copy of Mrs. Eagles’ response attached to them.

The letters concerning six subjects, that generated more than a few letters, have been organized into a separate Correspondence Subject Files Series. These subject files give readers a look into some of the political debates of the period.

The Subject Files Series contains, among other things, a 1974 certificate of Election from the North Dakota Department of State, a handwritten eulogy for Mrs. Eagles’ maternal grandfather Charles Henry Taylor, and maps and records related to her English ancestors. There are also a number of newspaper articles about Mrs. Eagles and her political career.