Kilruane commemoration, 1978 - can readers help?

Can you identify the leaders in this 1978 commemoration of Kilruane MacDonagh? Note the correct name of ‘Nenagh’ in Irish on the signpost – ‘Aonach Urmhumhan’ – not the imposed ‘An tAonach’ by a national commission.

Anyone with information, please email info@nenaghguardian.ie.