Patrick Rogan (Wisconsin)  Patrick Rogan (September 26, 1808 – February 16, 1898) was an American politician and businessman. Born in Ross Glass, County Down, Ireland, he emigrated with his family to Montreal, Canada. While there he worked as an office boy in a law office. Then the family moved to Jefferson County, New York. In 1837, Rogan moved to Wisconsin Territory and settled where Watertown, Wisconsin is now. He owned and operated a saw mill in 1844. He also helped construct railroads and roads. He also was postmaster. Rogan served in the first Wisconsin Constitutional Convention of 1846 as a Democrat. He also served in the Wisconsin State Assembly in 1851, 1853, 1855, and 1866. He died in Watertown, Wisconsin.