William C. Dayton, who previously lived in Elizabeth, N. J., was an active layman in the Ascension Parish of the Protestant Episcopal Church, Chicago Diocese, during the 1880s-90s. Rev. Larrabee was the parish rector, and Rev. R. R. Upjohn, who wrote nine of the letters in the collection, was the assistant.
The collection contains 21 letters and two speeches, with the majority of the correspondence discussing church matters. The authors of the two speeches are not indicated, although one commemorates Rev. Larrabee's tenth anniversary at the parish.