Bunaíodh Cumann Iománaíochta Naomh Mhuire ag muintir na tuaithe ar an iomlán i 1929. Bhíodh an CLG i gCluain Meala le 45 bhliain roimhe sin, ach nuair a thosaigh an lúthchleasaíocht agus peil Ghaelach, mheall sé muintir Chluain Meala isteach ann. Faoin am a bunaíodh Cumann Naomh Mhuire, bhí clú agus cáil ar Chluain Meala i bhfad is i gcongar don pheil.
I dtosach, d’imir imreoirí iománaíochta ón tuath (a d’oibrigh i gCluain Meala), agus muintir an bhaile mhóir lena chéile. Chuadar ó neart go neart le cúnamh ó na Bráithre Críostaí, agus mhéadaigh líon na n-iománaithe i gCluain Meala.
Bhí rath ar an gcumann i gcónaí leis na himreoirí óga. Sa lá atá inniú ann, is iontach an gaisce é grá don iománaíocht a chothú leis an aois óg sa chumann. Tugann an cumann gach deis dóibh a gcuid scileanna a fhorbairt i dtimpeallacht thaitneamhach chun lánsástacht a bhaint as.
St. Mary's Hurling Club was founded in 1929, its founding fathers being men of mainly rural origin. The GAA had a presence in Clonmel for 45 years before that but it was the Association’s commitment first to athletics and later to Gaelic football which chiefly attracted the men of the town. By the time St. Mary's was founded Clonmel was regarded as one of the strongholds of football in the county.
During the earliest years of its existence St. Mary's served as a meeting- point between men from hurling areas who were working in Clonmel and townsmen interested in the game. Soon the work of Christian Brothers and others in the town created a home-grown crop of hurlers who gave the club a distinctive Clonmel identity.
In the eight decades of its existence many would see the successes of the club as being in the area of under-age teams whose victories have not been quite matched in the senior sector. Today we continue to see the major achievement of the club in its success in fostering a love of hurling among youngsters and in providing them with every opportunity to develop their skills in an enjoyable and truly sporting environment.