Sir William Cope (Conservative) won the 1918 general election. Labour regained the seat at the 1929 general election when Charles Ellis Lloyd was returned but two years later lost the seat to the Conservatives' Patrick Munro. After Munro's death in 1942 Cyril Lakin won the by-election for the Conservatives. Arwyn Lynn Ungoed-Thomas (Labour) won the seat at the 1945 general election. The Llandaff and Barry constituency was abolished by the Representation of the People Act 1948. and replaced by the Barry parliamentary constituency. This seat was first contested in the 1950 United Kingdom general election when Dorothy Rees (Labour) was elected. She lost the seat to Sir Herbert Raymond Gower (Conservative) at the 1951 general election. He held the seat until its abolition in 1983. It was replaced by the Vale of Glamorgan constituency which Sir Herbert Raymond Gower (Conservative) won at the 1983 general election. He remained as MP until his death in 1989. At the subsequent by-election the seat was won by John Smith (Labour). At the 1992 general election Walter Sweeney (Conservative) won it by only 19 votes. That made it the most marginal seat in Britain. John Smith won it back at the 1997 general election. In the 2010 General election there was a 6.1% swing from labour to conservative. This has now handed the seat to Alun Cairns a (Conservative) MP. Senedd Cymru – Welsh Parliament Barry is part of the Vale of Glamorgan Senedd constituency and part of the South Wales Central Senedd region. Jane Hutt has been the Vale of Glamorgan Assembly member since the inception of the Senedd. Local councils Barry was incorporated as a municipal borough by royal charter in September 1939. The Borough was the successor to Barry and Cadoxton Local Board (1888–1894) and Barry Urban District Council (1894–1939). The area covered by the borough comprised Barry, Cadoxton-juxta-Barry, Merthyr Dyfan and parts of Penmark, Porthkerry and Sully. In 1974, it was abolished and its functions taken over by the Vale of Glamorgan District Council and South Glamorgan County Council. The local council, Barry Town Council, is the largest town council in Wales. It has given Olympic silver medalist David Davies freedom of the town, the first freedom granted since 1958. The mayor since May 2017 is Nic Hodges who represents Baruc Ward and is a Plaid Cymru councillor, Barry's first Plaid Cymru mayor. The town council has no overall control