Abstract Christina Murphy Allison and David N. Allison lived in Santa Barbara after marrying in 1980. She was an accomplished soprano who traveled widely for her performances. He was a well-known tractor collector and scholar. He also authored several articles on tractor collecting and farm literature. This collection was amassed over a 50-year period by David Allison and donated by Christina Allison. The majority of the materials are manuals, brochures, books, and magazines on the subject of farm...