In 1854, Gould surveyed and created maps of the Ulster County, New York area. In 1856 he published History of Delaware County, and Border Wars of New York, which he had spent several years writing.In 1856, Gould entered a partnership with Zadock Pratt [8] to create a tanning business in Pennsylvania in what would become Gouldsboro. Eventually, he bought out Pratt, who retired. In 1856, Gould entered another partnership with Charles Mortimer Leupp, a son-in-law of Gideon Lee, and one of the leading leather merchants in the United States at the time. Leupp and Gould was a successful partnership until the Panic of 1857. Leupp lost all his money, while Gould took advantage of the opportunity of the depreciation of property value and bought up former partnership properties for himself.[8] After the death of Charles Leupp, the Gouldsboro Tannery became a disputed property. Leupp's brother-in-law, David W. Lee, who was also a partner in Leupp and Gould, took armed control of the tannery. He believed that Gould had cheated the Leupp and Lee families in the collapse of the business. Eventually, Gould took physical possession, but was later forced to sell his shares in the company to Lee's brother.