J. C. Coleman son and three daughters. J. C. Coleman John (Jack) Cristopher Coleman (died 20 April 1971) was a respected Irish geographer, archaeologist, speleologist and mountaineer. He devoted much of his life to the study of the caves of Ireland, the product of which were his many contributions to scientific journals in Ireland and the United Kingdom, his founding of the Speleological Society of Ireland and the publishing of his book, "The Caves of Ireland". His dedication to the exploration of Irish caves and highly respected articles published both nationally and abroad were pivotal in boosting the study of speleology in Ireland
French Federation of Speleology its intense activity and partly because of the production of numerous publications including the "Proceedings of the International Congress of 1953". At the general meeting of the CNS appointed 10 May 1958, Geo Marchand was designated to organise the 2nd National Congress of Speleology in Cahors in 1959, with the group , of which he was President. Three hundred cavers from the CNS and the SSF took part in the event, from 6–10 September 1959. It gave rise to the presentation of 26 papers and five different films and inspired in the participants a desire for unification. The year 1961