One of the names listed - a Margaret McColl (Cameron) from Oban - is his cousin.
The other people of interest mentioned are Duncan MacColl also from Oban, Joan MacColl, Duncan MacColl from Tobermory, Margaret MacColl (Campbell), Finlay Sinclair (my ancestor, son of a McColl), Catherine McColl (previously sinclair - Finlay's sister), and Duncan McColl (Catherine's husband).
I'm presuming that McColl and MacColl are the same family and there's a little cousin marriage going on. I can't confirm the direct relationships in any of the cases above.
It's interesting to me as shortly after this even, Finlay Sinclair was admitted to and died in a Poor House in Lochgilphead.