Tweedy was born in Danbury, Connecticut.[1] He graduated from Yale University in 1834, where he was a member of the secret societySkull and Bones.[2] He then moved to Milwaukee, Wisconsin Territory, in 1836, where he practiced law. He served in the Wisconsin Territorial Council, the upper house of the Wisconsin Territorial Legislature, in 1841–1842, and later served in the Wisconsin State Assembly in 1853. Tweedy was also a member of the first Wisconsin Constitutional Convention of 1846.
Tweedy was elected as a non-voting delegate to the Thirtieth Congress to represent the Wisconsin Territory, serving from March 4, 1847, until Wisconsin became a state on May 29, 1848. Tweedy was prominent in business involving railroads and public affairs. He died in Milwaukee, Wisconsin, aged 77, and was buried in Danbury, Connecticut.[3][4]
Private papers
His son, John H. Tweedy, Jr., donated his papers to the Wisconsin Historical Society.[5]
^Millegan, Kris (2003). "The Skeleton Crew". Fleshing Out Skull and Bones: Investigations into America's Most Powerful Secret Society. Walterville, OR: Trine Day. pp. 597–690. ISBN0-9720207-2-1. "This list is compiled from material from the Order of Skull and Bones membership books at Sterling Library, Yale University and other public records. The latest books available are the 1971 Living members and the 1973 Deceased Members books. The last year the members were published in the Yale Banner is 1969."