Caerphilly by-election, 1968

The Caerphilly by-election of 15 June 1968 was held after the death of Labour MP Ness Edwards.

The seat was very safe, having been won by Labour at the United Kingdom general election, 1966 by over 21,000 votes

Candidates

• Labour chose Alfred Evans to defend their seat, who was a councillor
• Nationalist party Plaid Cymru stood Philip Williams, who at the time was teaching at University College, Aberystwyth
• The Conservatives chose Robert Williams
• Peter Sadler was the choice of the Liberal Party association

Result of the previous general election

General Election 1966: Caerphilly

Party		Candidate	Votes	%	±%
	Labour	Ness Edwards	26,330	74.25
	Conservative	R Maddocks	5,182	14.61
	Plaid Cymru	J D Howell	3,949	11.41
Majority			21,148	59.64	-

Result of the by-election

By-election 1968: Caerphilly

Party		Candidate	Votes	%	±%
	Labour	Alfred Evans	16,148	45.66	-28.59
	Plaid Cymru	Philip Williams	14,274	40.36	+29.22
	Conservative	Robert Williams	3,687	10.43	-4.18
	Liberal	Peter Sadler	1,257	3.55	N/A
Majority			1,874
	Labour hold		Swing