The letters in Series 1: Correspondence are primarily personal in nature, though some business correspondence is also included. Most of the correspondence dates from the Birds' time living in the Middle East and India in the 1960s and 1970s, though there are also letters that predate and postdate Eugene's tenure with the Foreign Service. In addition to the Birds' outgoing letters describing their lives to family and friends, the series also contains a large portion of letters that the Birds received from their children and from other Foreign Service families.

The documents in Series 2: Saudi Arabian Women Projects mostly relate to Jerine Bird's unpublished manuscript on the changing roles of Saudi Arabian women, alternatively titled either "The Wall and the Veil" or "Beyond the Wall." The series contains multiple drafts and outlines of the book's chapters, as well as the notes and research materials that Jerine Bird consulted, including interviews that she conducted with Saudi Arabian women in the early 1980s. To a lesser extent, this series includes materials related to a workshop on Saudi Arabian women and society that Jerine Bird developed and taught at Georgetown University around 1983-1984.