Do you have any idea where in Co Donegal they were from? Who their parents were, and if they had other sibblings your familar with who they were.
O'Donnell is a very common name. I have O'Donnell's in Co Donegal, as well as Co Cork, believe the families are cousin.
James O'Donnell 1845 m Susan Doherty 1845, at the Sacred Heart Church in Carndonagh about 1866. Their children were Patrick 1867, John 1868, Neal 1871, my grandmother Mary Ann 1873, Maggie 1875, Denis 1878 and Philip 1880 Patrick and Maggie as best I can tell may have stayed in Irealnd. The others all immigrated to MA John m Bridget Long Neal m Rose McGonigal Mary Ann m Patrick Bradley May 1864 Co Donegal Denis m Catherine McLaughlin parents Mark and Grace Philip m Ellen Noon
In Co Cork(the cousins John O'Donnell m Elizabeth Carney their 3 known sons were Peter, Patrick and John F
I know thru word of mouth that we still have O'Donnell's and Bradley's in the Co Donegal(Malin Head, Carndonagh, Glenmakee area-but haven't been able to find them--yet.