Caren,
This may be a long shot - but I am tracking Convery relatives in Rocktown Ireland, and I saw your post. My GGG grandfather was Patrick Convery who married Bridget Lagan. Their son was Patrick Convery, born in 1844, who married Margaret Dorrity. Other children of Patrick and Bridget were Charles, John (m. Ellen Higgins), Nancy (m. William McPeak), Rose (m. James Donnelly), and Sarah (m. Henry O'Neil).
Any chance you stumbled across this Convery/Lagan branch in your searches on Converys or Lagans in Rocktown?
Frank