The fonds consists of bibles, prayer books, contracts, and Webb's personal diaries, which contain information about his life and work. The fonds is arranged in three series: Bibles, Contacts, and Diaries.
Series contains 32 personal diaries: one dated 1888-1892, and one for each year from 1912 to 1942. The diaries detail Webb's daily life, and contain both personal and work-related information. Some diaries include newspaper clippings, such as obituaries, as well as lists of expenditures.
Series consists of one Holy Bible, which contains details about the Van Sickle family of Lynden; and two pocket-sized prayer books, containing select readings from the BIble.