Kimball, along with his architectural partner, Erling H. Pedersen, undertook extensive alterations and an addition to Moors' End, a Colonial home on Nantucket owned by Edward F. Sanderson. In addition, Kimball assisted with the furnishing of the home in period antiques. The sub-subseries contains correspondence, contracts, specifications, and photographs, including several of the house and outbuildings under construction. There are also seven oversize photographs of this project which Kimball exhibited in the 1927 Architectural Exhibition of the Philadelphia Chapter of the American Institute of Architects.