I have a Reilly from the Ballyconnell area who went to America with my grandfather, but it'd be the next generation fromyours.Francis Reilly arrived with my grandfather James Dermody ca. 1898.They were both 21.I've never been able to trace a Dermody or Curran relation to Reilly, but they say on the manifest they're cousins.
Your Mary could've been either - a laundress in a house or in a laundry. My bet would be for a private family, but you never know.The only suggestion I can make is to see if you can find a baptismal record for her. It's a bit iffy not knowing who her parents were.Do you have her death cert?