only information that I had on the McDevitts
Mary Toner married Hudie McDevitt
Son James, he had 2 children Annie and Tommy.
I did a search on Lindel site and found a census record Ballygallan,parish of Conwal
which gives a James McDevitt wife Bridget Toner ( toner just a coincidence I think, lots of Toners around Conwal and Glenswilly)), children Patrick, Connel, Thomas and Annie
http://freepages.genealogy.rootsweb.ancestry.com/~donegal/1901Ballygallan.htmAlso found some other Children
igi index ; Peter McDevitt 20th May 1873 parents James McDevitt, Bridget Toner
see baptisms, James, John and Mary Ellen McDevitt
http://freepages.genealogy.rootsweb.ancestry.com/~donegal/1901Ballygallan.htmRev. Peter McDevitt P.P. Carrick d. 25 Oct 1905Miss M.E. McDevitt (niece)
Peter McDevitt(nephew)
I must also state also that eventhough I am only aware of 2 siblings of Peter Toner i.e. Susan and Mary
it doesn't rule out that he may have had other siblings.
tomby