Drawings for the Tonkens House were completed by Frank Lloyd Wright, his grandson and apprentice, Eric Lloyd Wright, and John H. "Jack" Howe. John deKoven Hill and Cornelia Brierly were landscape designers on the project. Engineering drawings were completed by William Wesley Peters, Edmond Thomas "Tom" Casey and Mendel Glickman. Glickman was also solely responsible for the ceiling block engineering. Furniture, upholstery and fabric selections for the house were supervised by John deKoven Hill. Final drawings and specifications were presented to Gerald and Rosalie on February 25, 1955 and approved soon after. The 'Tonkens House' would be assigned project number 5510 by the Taliesin Foundation.