Materials from the Board of Trustees, boards of deacons and deaconesses, and church meetings; lists of members, baptisms, and funerals; records of women's and youth organizations; Sunday School materials; letters from donors to the church building fund. Tape recordings of services; plans for remodelling the church; records of the Danby Baptist Church and the First Baptist Church of Christ of Ithaca.

Business and personal papers consisting mainly of correspondence, records, and files, including sketches and photographs dealing with architectural work and with professional associations and councils in which Sleeper was active, but also including personal correspondence, minutes, reports, and published material.

Record book of business accounts, 1882-1927; photograph album of designs, an address on church architecture, December 3, 1891 and cartoons for the windows of Emmanuel Episcopal Church in La Grange, Illinois.

Includes seven drawings, three postcard views, eight photographs, five negative photostats of drawings, two typescript articles, and a publication of St. John's Church in Washington, D.C.

Diagrams and plates of houses, churches, and hotels in Atlanta, Georgia designed by Denny.