I found this but there is no proof so you can use it as a clue and do further research. I'm not sure if this means she was previously married to someone with surname Paul or what?? I did note that on one of the early Canadian census's that they lived next door to people named Paul. More research is definitely required on this one.
good luck!!
Mary Ann Quigley Paul
Birth
abt 1837
Sheet Harbour, Halifax, Nova Scotia, Canada
Death
BET 1901 AND 1911
Family Info
Father
Mother
Spouse
Francis Cope (1829-1912)
Married 1857
Children
Alexander 'Sandy' (1853-1930)
Catherine Annie (1860-1922)
Alice Bridget (1862-)
Francis (1864-)
Nancy (1865-1933)
Emily (1866-1947)
Henry (1871-1914)
Bridget Ellen (1876-)
Margaret (1878-)
Peter (1882-)
Elizabeth May 'Libby' (1888-1974)