MP. The election also saw the highest turnout in any Westminster by-election since universal suffrage, with 91.5% of the electorate voting. Devlin held the seat at the 1970 general election, at which time the Unity movement acquired another MP, Frank McManus, in Fermanagh and South Tyrone. However they both lost their seats at the February 1974 UK general election. References External links A Vision Of Britain Through Time (Constituency elector numbers) "Gospel of Devlin", TIME Magazine 1969 British Parliamentary By Elections: Result & campaign literature Mid Ulster by-election Mid Ulster by-election By-elections to the Parliament of the United Kingdom in County Londonderry constituencies By-elections to the Parliament of the United Kingdom in County Tyrone constituencies 20th century in County Londonderry 20th century in County Tyrone 1969 elections in Northern Ireland