Further to above my sister Ann & I have now recalled some more info following on from the first contribution above.
Ann went to the classes with her school friend Angela Nertney. The Nertney’s were a large family [Pat, Sheila, Therese, Angela, Christine, and twins Rodger & Clive. They lived in Avington Grove, just off Penge High Street.
Further – Ann, Angela & Christine went to RE classes a little way up the Beckenham Road from the Croydon Road junction with Penge.
Another girl who my sister is fairly sure went to the classes for a short time was Bridget [nee O’Regan] McGuiness. Four boys in that family i.e. John who married Bridget, then Ernie, Mick & Terry. They all lived in Penge.
Put it all on here in case anyone may be interested.