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
Heroic Age of Antarctic Exploration proper. He did hypothesize that, based upon the amount of ice, there must be an originating land mass. Subsequently, exploration of the Southern regions of the world came to a great halt. What followed this period of Antarctic interest is what historian H. R. Mill called 'the age of averted interest'. Following the expedition South by the ships HMS "Erebus" and HMS "Terror" under James Clark Ross (January, 1841), he suggested that there were no scientific discoveries, or 'problems', worth exploration in the far South. It is considered that Ross' influence, as well as the loss of the Franklin expedition