Thaddeus married Anna Bedell (50934) , daughter of Col. Timothy Bedell (33787) (31 Jul 1724-24 Feb 1787) & Elizabeth Merrill (ca 1742-31 Aug 1779). Born on 20 Oct 1766 in Haverhill, Grafton County, New Hampshire.649 Anna died in Haverhill, Grafton County, New Hampshire in 1832.

Ann a first married Thaddeus Butler, seocnd Samuel Brooks as his second wife.