The Philo T. and Elma G. Farnsworth papers contain personal records, biographical data, books, awards, honors, technical drawings, research notes, workbooks, journals, news clippings, historical documents, speeches, patents correspondence, business records and a book written by Elma on Philo. The Philo T. and Elma G. Farnsworth audio collection contains audio recordings of Farnsworth speaking to audiences as well as recordings his wife, Elma G. "Pem" Farnsworth, made while researching a biography following his death in 1971. The recordings mostly contain Pem, and people that knew Farnsworth and worked with him. The collection is digitized and available to listen to on compact disc.