As I mentioned this morning, it was notable that of the 48 Labour welfare rebels last night, 21 were either newly elected in May or first elected in by-elections under Ed Miliband’s leadership. This represents a serious and lasting change to the Parliamentary Labour Party. Not long ago it seemed that the old loony left (the Jeremy Corbyns and Gerald Kaufmans of the world) would die out eventually because they were, well, old. Now the red reservoir has been topped up by a new generation, who may linger for decades.

Here they are (by-election dates in brackets where relevant, all others first elected in May 2015):

Debbie Abrahams, Oldham East and Saddleworth (2011 by-election)

Richard Burgon, Leeds East

Peter Dowd, Bootle

Margaret Greenwood, Wirral West

Louise Haigh, Sheffield Heeley

Carolyn Harris, Swansea East

Sue Hayman, Workington

Imran Hussain, Bradford East

Gerald Jones, Merthyr Tydfil and Rhymney

Clive Lewis, Norwich South

Rebecca Long-Bailey, Salford and Eccles

Andy McDonald, Middlesbrough (2012 by-election)

Liz McInnes, Heywood and Middleton (2014 by-election)

Rachael Maskell, York Central

Kate Osamor, Edmonton

Marie Rimmer, St Helens South and Whiston

Paula Sherriff, Dewsbury

Tulip Siddiq, Hampstead and Kilburn

Cat Smith, Lancaster and Fleetwood

Jo Stevens, Cardiff Central

Daniel Zeichner, Cambridge

Interestingly, being part of Generation Miliband isn’t all they have in common. At least 17 of the 21 are closely linked to Unite – either as former employees, elected officers, activists or recipients of endorsements and funding from the union. What proportion of Labour’s new generation is dancing to Len McCluskey’s tune?