I checked the Ennis baptisms as well, and they begin in 1841. There are no more children of Martin listed, so Ellen was the last of that line. In rural Clare in those days, all the peasants were Catholic and they were devastated by the Famine. I also looked for Martin Leader/Leaden in Clare in familysearch, found one born to Denis in Kilkishen townland in 1875, possibly a grandson of your Martin. There are Kilkishen townlands in Clonlea and Kilmurry civil parishes, not too far from Ennis. Unfortunately, couldn't find Denis's marriage, which would have given his father's name. Diane