Hi, this may not be anything to do with your enquiry but I am also looking for Mary Agnes Fraher married to John Fraher in 1877, records show that she was born in New York Oct. 1856, with parents born in Ireland. I am finding it very difficult to track her any further as I believe Fraher was a married name and not a maiden name, if any of these details seem to match your searches I'd be interested in getting more details.
Regards,
Bill.