Hi Jane,
The sisters Mary and Bridget definitely stayed in touch. Bridget became a professional nurse and lived with her sister's family many, many years. She was Mary's executor in 1928 (Mary's husband died in 1927).
I don't know when Patrick Moroney or his wife Bridget died. I've looked through the Elmira cemeteries and even stopped at Woodlawn Cemetery in Elmira to look through the pauper's list on paper.
My aunt mentioned some Moroneys in the same cemetery where Mary, her husband, and several of her adult children are buried. She called them "shirttail relatives" but she was the youngest grandchild and had a lot of stories mixed up. I investigated t hem and could not find any connection whatsoever.
3 of my father's grandparents were born in Ireland and the 4th was the daughter of immigrants coming together in Chemung County. There were a LOT of Irish throughout the New York / Pennsylvania border region but I haven't found a clear reason that any of them chose Chemung County. At least, not yet.
I'm having an email conversation with a guy who has a theory that the wife is missing from the family in the 1860 census because she was working and living in another house as a servant. The age doesn't fit though (by a lot). Patrick was a mason and laborer in some records but if he was ill or injured the wife might have worked out of the house, possibly relying on her eldest daughter to take over. I'm not sure how often a married woman would move into another home though. His theory also suggests the wife was alive as late as 1874 and she was working at the same hotel (Rathbun House) where both daughters worked. I need to rethink every record I've looked at and dig through other records from Elmira just in case his theory has legs.
I had to rethink a long-held connction several years ago when I realized the math made no sense for a marriage. I was right, the math was wrong. I hate giving up 'settled' research but we, as family historians, really can't hold onto stories just because they've become familiar. I 'lost' a Mayflower descent when I found the error. It was a little traumatic after so many years, but I'd rather have a true story than a famous one.
I need to block off time to figure out. Not quite sure how to structure this genealogy question/case yet.
~Mark