CPC on TV in 1968: who are they?

Mark Reid has tipped the Diary off about this query from the Stills Library in RTE, writes Brian Byrne.

The three girls are pupils of CPC who appeared on the RTE TV quiz programme 'Mark Time' in 1968. And the station wants to know who they are.

Contact archives@rte.ie if you can help. Your editor recognises one of them, maybe a second, but awaits confirmation.