This is a few years after your message was first posted, but I have a Nancy Negus in my family tree. She was born July 9, 1786 in New Brunswick Canada. She married Patrick O'Carroll (born April 25, 1789) in St. John Newfoundland on December 13, 1811.
I have Patrick listed as dying in 1860; Nancy in 1858.
They had a son, William O'Carroll on January 3, 1815 in New Brunswick. He married Ester Ann McInelly on April 13, 1841. They had a daughter, Irene Jane O'Carroll, born April 5, 1854 in New Brunswick.
Irene is my great-grandmother.
I have a bit more information that I would be happy to share with you, if you're interested.
Lenore Hayes - email: firstname.lastname@example.org