Dick,

Used to be the Bells of St Mary le Bow Church in the City of London but some East Enders seem to think it was St Mary at Stratford atte Bow in Bow Road in the East End.
Problem for me is do I or do I not qualify?

"it was an East London lad local to the club according to Peggy"

Just to clarify Ballads & Blues meetings were at that time held at The Princess Louise which is in Holborn which is NOT local to the East End.

The obit linked by TheSnail above also says that MacColl Made an exception for John Baldry. Is that right? John was a regular at the Ballads and Blues and was there at it's final evening as was by co-incidence the lady that Ewan would not allow to sing an American song some years earlier when he and Peggy were regulars at the Princess Louise.