Ray - I only have a baptism date for Leah, which is Feb 16, 1832, so the birth date you have sounds good. Was her middle name Doherty or did she use Doherty as her last name? Source is the LDS Ireland file of Aug 1984.
Solomon's sources are a letter from Dorothea Vining regrding his history and the records from the Church of Ireland in Rathkeale. Can send you a copy of her letter if you give me your email address.
Re Adam, only that he was the son of John Delmege and Jane Adare, would need to know which branch to further the search.
In the Delmege book I have, Solomon is referrred as the St. Marys Branch. Your line traces back to Jacob, 4th son of Johann Adam Dolmetsch, mine goes back through Adam, 3rd son of Johann.