They were residents at Surbiton Folk Club (at the Oak and the Assembly Rooms)along with Lisa Turner and of course Derek Sarjeant.
Somewhere, tucked away, I have an EP of Derek backed by them.
Later, in 65/66 Malcolm used to do occasional 'guest' spots at the club. Good banjo player if I recall, and a bit of an afficionado of bluegrass - at a time when it was regularly heard in folk clubs.