More than fifty items of correspondence, primarily written between 1942 and 1946, describe Heyer's experience as a WAAC and WAC. The majority of letters are to Heyer's sister, Harriette "Topsy". Letters before Heyer went overseas cover her experience in basic training. They focus specifically on her classes, softball games, parades, and other daily activities. While in New Guinea, Heyer wrote lengthy letters describing native villages, customs, and her visits to the surrounding area. Letters from the Philippines include vivid descriptions of natives villages, arriving in Manila right after the Japanese occupation, and her visit to Corregidor. Overseas letters also include her attitudes about dating and her reaction to the end of the war in Europe. Letters also include money from occupied areas in the Pacific. Also included are undated items attached to correspondence.