Rooting around I found 2 interesting birth registrations......
(1) Duncan Donald McIntosh born 17 Nov 1876 father-Donald McIntosh, Mother- Christy Fraser, address given as W 11.7 Lochiel.
(2) Christina Catherine McIntosh born 6 Sept 1877-father-John
McIntosh, Mother Christy McKinnon, address given as E 11.7 Lochiel.
I expect that John is a brother to your Donald. Both children were delivered by a Dr McIntosh.
In the 1881 census both men (Donald and John) had sons aged 13 named Niel.
I do know who works with the cemetery at St Columba but will not post the e-mail address on line here. Contact me at email@example.com