I, too, have Francis' parents as Francis and Sarah (nee Doyle). My husband is a descendant of them through Francis' brother, Solomon.
I did not know of Francis and Solomon's sisters, Ellen and Hannah. Thank you for that information. Do you have a tree with documentation. I see your one tree has many Feltus in it, but I do not see the Feltis lines. Perhaps I am not looking in the correct place.
We are visiting Ireland in 3 weeks, and I will see if I can find any info on the death of Francis Sr. If I do, I will let you know.
Thanks for your direction.