^1Lindsay Hoyle, Nigel Evans and Dawn Primarolo elected Chairman of Ways and Means, first Deputy Chairman of Ways and Means and second Deputy Chairman of Ways and Means respectively. Although these Deputy Speakers do not resign from their parties, they cease to vote (except to break ties) and do not participate in party political activity until the next election.
^3Eric Joyce was suspended from the party on 23 February 2012 following his arrest on suspicion of assault. He resigned from the party on 12 March 2012, and now sits as an Independent.[2]
^4Phil Woolas' election for Oldham East and Saddleworth was declared void on 5 November 2010 after he was found guilty of knowingly making false statements in campaign literature.[3] A by-election took place on 13 January 2011, at which Debbie Abrahams was elected as the new Labour Member of Parliament for Oldham East and Saddleworth.[4][5]
^8Louise Mensch resigned on 29 August 2012, citing family pressures.[6] A by-election took place on 15 November 2012, at which Andy Sawford was elected as the Labour Member of Parliament for Corby.
^13Denis MacShane resigned on 5 November 2012 after revelations regarding his parliamentary expenses. A by-election took place on 29 November 2012, at which Sarah Champion was elected as the new Labour Member of Parliament for Rotherham.
^18 Although Sinn Féin maintains offices at Westminster, the party's policy of abstaining from participation in the House of Commons (on account of disputing the UK Parliament's claim to jurisdiction in Northern Ireland and the requirement for Members to swear an oath to the Queen) precludes its MPs from taking their seats.[12]
^20 Actual government majority includes the Conservative–Liberal Democrat coalition, and excludes members that do not vote (Sinn Féin, and the Speaker and his Deputies) and vacant seats.
