Career
Mary Long Seaver died in August of 1850. At the time of his legislative service, Seaver listed himself as a farmer, 59 years of age, a native of Massachusetts, who had been in Wisconsin for 12 years. Seaver was elected Clerk of the first Town meeting of Darien, and would continue to be elected to various Town offices through 1857, along with a number of other Seavers whose exact relationship to Joseph is unknown.
He was elected for the 1853 session from a district which encompassed the Towns of Darien, Delavan and Sharon.
He served on the standing committees on town and county organization, and on charitable and religious societies. He was succeeded in 1854 by William P. Allen, a Whig.
Seaver died August 1, 1864, "AGED 71 Years & 9 Ds.", according to his tombstone and is buried in Darien Cemetery.