These documents consist primarily of daily reports and communications prepared for Edison by William J. O'Dair, product engineer at the Edison Storage Battery Co. The dated items cover the years 1919 and 1920. There are also a few undated items from the same period. Included are production testing data on tubes, pockets, and other battery components, along with Edison's notations concerning quality issues. Also included are technical notes from Edison to O'Dair, containing questions, experimental instructions, and requests for materials. Other ESBCo employees mentioned in the documents include researchers Frederick W. Cunningham, Walter H. Patterson, George J. Peck, and Dwight S. Sargent, as well as vice president and general manager Charles E. Sholes. Some of the notes in Edison's handwriting have been stamped on the back with the date and the notation "Edison Storage Battery Co. Product Eng'g Dept." Many of the communications exchanged between Edison and O'Dair were originally fastened together, accompanied by notes from O'Dair indicating that they were being sent to Sholes to "note and return."
All of the documents have been selected except for a few fragments and notes that contain no substantive information. Courtesy of Thomas Edison National Historical Park.