Did you look at the actual image of the census. You can see it at
http://www.collectionscanada.gc.ca/databases/census-1891/ind...When you look at the way the family has been recorded, it's pretty obvious that she is the wife of
Josephs son Michael and that Catherine, age 1 is their daughter. The 1901 and 1911 Census can be viewed at
www.automatedgenealogy.comMichal is residing in
Herring Cove with wife Ellen and children Catherine, Walter E and Annie. Didn't have any luck finding a marriage record on the NS Vital Stat site