Buisnesses located at 129 Genesee Street: First National Bank of Auburn, a bank in Auburn. Not to be confused with Auburn City National Bank. The business of William Fossgate, a lawyer. His son, William Fossgate Jr. also worked there as a clerk. The offices of Blanchard Fossgate, a physician.
Source of Building Data: 1875 Boyd's Auburn Directory, 1875-6, containing the names of its citizens, a compendium of its government, and of the public and private institutions, together with a Business Directory of Union Springs, Aurora, and villages on the Southern Central Railway.
Just says "Headquarters at Auburn."