Our "wife of a cousin" information source tells us that Mary Ann Madigan Mulcahy's parents, Margaret Sullivan Madigan and Matthew Madigan, "lived in Manhattan in the only house that had a tile roof." Even assuming accuracy, I have no idea how to go about finding the only house in 1870s Manhattan that had a tile roof. I wish I did, because that would be great to know.
Question: Does having a house with a tile roof imply wealth? Or just having enough tile to roof a house?