I found your post about the above. My great great grandmother Mary Burke (1826 -1919)from Seskin House Upperchurch Tipperary married a Thomas Kennedy. According to family lore Thomas was a groom/coachman employed by the family and Thomas and Mary went to England where they had 3 sons. Thomas died apparently in England but I haven't found a death record and Mary returned home with her 3 sons. Mary and her sister Johanna then migrated to Australia. Mary's sons were William, Andrew and Thomas. Thomas died in Australia in 1877 I don't know what happened to the other two sons.
Will you let me know if any of this links with your information.