I've been looking for some info for awhile on my 2nd great grandfather, John Kavanagh. Your post caught my eye. John is the first Kavanagh that my family can remember in Newfoundland. They suspect he was the ancestor who came from Ireland, although some records indicate he may have been born or lived in Labrador. My dad said he can remember his mom telling him they called him "Old Johnny Kevan." I wonder if he may be related to your Kevane/Kavanagh line?