ah, yes, the photo with john Foreman, Sheila Finn etc ... I was thinking of an archival photo!

Chas McDevitt's book on skiffle:
City Ramblers: Russel Q, Antony Bo-Bo Buquet, Henrik Johansen, Jack Elliott, Hylda Sims, Chris Bateson. Alan Little Bear Sutton (1956 recording in Copenhagen, with some of the above just there for the tour (eg Jack Elliott)/recording).

Then:
Russell, Hylda, Pete maynard, Chris bateson, Shirley Bland, Jimmie MacGregor.

Then:
Russell, Jimmie, Hylda, Shirley, Chris, plus Vic Pitt, Eric Bunyan.

But I bet it was more fluid than that!

Derek