Background
Dunwoody was born in Totnes, Devon, the daughter of the late Labour MPs Gwyneth Dunwoody, and Doctor John Dunwoody. Through her mother she is the granddaughter of former Labour Party General Secretary Morgan Phillips and Norah Phillips, Baroness Phillips.
Career
She has five children: Daniel, Demelza, twins Michael and Morgana and Clarissa. Dunwoody trained in the National Health Service, and worked in London hospitals for nearly 15 years. She has also been an adviser to small businesses in west Wales, and lives in Haverfordwest.
Dunwoody was elected (under the name Tamsin Dunwoody-Kneafsey) as Assembly Member for Preseli Pembrokeshire from 2003 to 2007.
In October 2005 she was appointed Deputy Minister for Environment, Planning and Countryside and Deputy Minister for Economic Development and Transport in the Welsh Assembly Government. She was defeated in the 2007 election by Conservative Party candidate Paul Davies.
She was selected as the Labour candidate at the Crewe and Nantwich by-election, held on 22 May 2008, which was triggered by the death of her mother. She lost to Conservative candidate Edward Timpson, by 7,860 votes marking the first Conservative Party parliamentary by-election victory in a Labour-held constituency since 1978.
Politics
The last parliamentary by-election in which the Conservatives had gained a seat previously held by another party was in 1982, in Mitcham and Morden.
Membership
She served as a Labour member of the National Assembly for Wales representing the constituency of Preseli Pembrokeshire from May 2003 until her defeat in the 2007 election by Conservative Party candidate Paul Davies.