My mother Mary Choban (maiden name Kushniruk) informs me that her grandmother was Dorothy Bumback and grandfather was Wasel Bumback. Her mother's name is Annie Bumback and her Aunt is Pearl Bumback and her uncle was John. His son was Walter Bumback. All of these people are deceased. All resided in the Two Hills and Desjaurles ( not sure of spelling) and Edmonton areas of North Eastern part of Alberta, Canada. Hope this is of some help to you and if further information is required please contact me and we can dig in further.