Sharon and Monica,
Are you saying, then, that you have dismissed the MCBRIDE/MCBRYDE/BRODDIE/BRODIE/BRODY-MCTAVISH/THOMSON births in South Knapdale?
And the 1841 BRODIE family at Clachbreck, South Knapdale?
And the 1851 BRODIE family (brilliantly found by mike175) at Baileyerzagan, South Knapdale?
If, however, you still have the 1851 BRODIE family in the picture (which seems reasonable) that would keep the South Knapdale births also in the picture. And - given that the 1851 family has Mary 16, Jane 14, Dugald 10, Catharine 7, John 5, Lillias 1m all born South Knapdale - that family would certainly be expected to be in South Knapdale in 1841.
Argyllshire 1841 is 100% covered on FreeCEN.
On FreeCEN in 1841 in South Knapdale, there are no MCBRIDE/MCBRYDE families, and only two BRODIE families - the Clachbreck family (with a Mary 6, Jane 4, and Dugald 1) and a family of Alexander 42, Christian 36, John 17, James 15, Duncan 13, Dugald 9, Alexander 7 at Baile Boidheach.
Also in South Knapdale are an odd James BRODIE 14, a male servant in Kilmory, and an odd Mary BRIDE 15, a female servant in Fermoch.
So the 1841 Clachbreck family would still seem to be in the picture.
JAP