I might have some information for you, as told to me (and written down) by my late Grandfather Charlie Kelleher from Malden, MA. Mike Kelleher (originally spelled Keleher) died when my Grandfather was six. One of Mike's children was named John Edward Kelleher. John married Katherine (Jamieson) from Cape Breton. Together, John and Katherine had three kids: June, John (deceased) and my grandfather Charlie (deceased).
Please let me know if this helps and if you would like to know anything further. I've attached a picture of John Edward Kelleher, dressed up as a cowboy hahaha!