Samuel Ogden, an agent for Robert Morris. Ogden, in turn, sold the property in 1794 to Charles Williamson, agent for The Pulteney Association. On November 8, 1803, The Pulteney Association sold the Tract for $1,750, on a five-year land contract, to Col. Nathaniel Rochester (1752–1831), Maj. Charles Carroll, and Col. William Fitzhugh, all of Hagerstown, Maryland. Rochesterville and The Flour City Rochester was dominated by ethnocultural politics. Two rival groups fought for power, the Presbyterian Yankees from New England, and the Episcopalian New Yorkers from New York and Pennsylvania. When Irish Catholics started to arrive in large numbers in the 1840s and supported the Democrats, the two Protestant groups stopped feuding and presented a common front. Col. Rochester and his two partners allowed the millsite to lie undeveloped until 1811, when they finally completed paying for their purchase and received the deed. The population of the area was 15. They then had the tract surveyed and laid out with streets and lots. The first lot was sold to a Henry Skinner, at what is now the northwest corner of State and Main. In 1817, other land owners, mainly the Brown Brothers (of Brown's Race and Brown's Square), joined their lands north to the Tract, to form the Village of Rochesterville, with a population of 700. In 1821, Monroe County was formed out of parts of Ontario and Genesee counties, and Rochesterville was named the county seat. A two-story brick courthouse in the Greek Revival style was built at a cost of $7,600. In 1823, property of Elisha Johnson on the east side of the Genesee across from the Tract was annexed, bringing Rochesterville to 1,012 acres (4.1 km2) and the population to about 2,500. That year, "-ville" was dropped from the city's name. This was also the year that the first 800-foot (244 m) Erie Canal Aqueduct was finished over the Genesee, just south of the Main Street Bridge. It was built over 16 months by 30 convicts from Auburn State Prison. In 1822, the Rochester Female Charitable Society was founded. Members paid twenty-five cents per year to belong to the Society and also contributed provisions, clothing, and bedding which they collected from the community. Visitors distributed the goods and money to the poor of each district. By 1872, seventy-three districts had been established, each with a woman visitor. That organization was instrumental in founding the Rochester Orphan Asylum (now