Roger, you have been busy! And you have the right family. I do have all that information. And I have birth records on all their children. No baptismal records though. They actually attended St Edwards, although my parents were married at St Bonaventure. I grew up in a nearby neighborhood too. Baptismal records are harder to come by as Philadelphia has closed many of those inner-city parishes and moved records. I located the church that has St Edwards records, but they are not very helpful. Can keep trying.
I onlly know of one sister of Mary named Anne (marriage name McNamee) who emigrated and died in Philadelphia.
I was hoping to be able to identify the family in Ireland and visit the town in 2015. I did this for my mother's family in Serbia, and last year Patrick Duffy's home town in Rochdale England. But after 20 years of research, Mary Duffy is still elusive.
Appreciate any further suggestions. Thanks again. Eileen