In the British Isles as a whole there are early entries for Argyll/Argyle
and a few Argyles in Ireland, one entry for Orgill in Scotland. Earliest
Argyle recorded, 1245 Scotland, 1583 Howden, Yorks.
As I've mentioned before instances of Argyle becoming Orgill and vice
versa are fairly common around that hot bed of Orgills, Gresley, B.o.T. etc.
Both surnames exhibit the same range of variations, such as, Hargill, Horgill;
Argyll, Orgyll and Argaile, Orgaile. The non-related Cornish name Argall
also appears as Orgall. I think many surname variations can be put down to
the low level of literacy so opening the way for local accents to affect
the written records.
All the Best, Vic