Collection is comprised primarily of files from approximately the early 1980s to 2017 detailing Joshua Abbey's theater and film career; his involvement with environmental efforts in Southern Nevada such as the Citizens Against Nuclear Waste in Nevada (CANWIN); and his involvement with the Jewish community in Las Vegas, including the Jewish Film Festival, the Jewish Federation, Temple Beth Sholom, and other organizations. The collection also includes information about the Jewish Community Center from the 1950s and a file on the film production of The Brave Cowboy, a novel written by his father, Ed Abbey.

The Kiel Family Photographs (approximately 1854-1989) contains glass plate negatives of members of the Kiel and George families, as well as neighbors from the Stewart and Wilson ranches and ranch workers. The majority of the photographs were taken at the Kiel Ranch site in North Las Vegas, Nevada. The collection consists of the original glass plate negatives, as well as photographic print and negative duplicates made using the originals.