I doubt Arthur and Archibald are the same - not like it is just a little tweeking. The gaps in Irish information makes things hard to match up.
On familysearch.org found this: Irish bmd 1620-1880:
Christopher Noble born 1836 Camus, Tyrone to parents William Noble/Dorcas.......
It would seen the Camus Parish records survived.
I thought you might find this one interesting because of the use of the same first names.
12 Nov. 1878 Charles Arthur Noble, Sionee, Tyrone
father: Archibald/Sarah Wilson
The Canada information with Tyrone births are also on the website you just have to hunt for them you could also
try the www.familysearch.org/search/collection/igi