Hi
Duncan McTaggart married Mary Mitchell in Kilchoman on 5 Jan 1836.
children, baptism dates, birth dates:
Archibald, 4 Dec 1836, 18 Oct 1836
Esther, 13 Apr 1838, 12 Dec 1837
Mary, 3 May 1839, 27 Apr 1839
Ann, 3 May 1839, 27 Apr 1839
Alexander, 5 May 1843, Aug 1842
Christian, 2 Oct 1844, 29 Mar 1844
John, 29 Jul 1846, 29 May 1846
You said they had son Christian, this was actually a daughter, I have checked the baptism. Christian was a popular female name in Scotland in 1800s.
I have the following records for Kilchoman if you wish me to check on anything:
Kilchoman births 1821 - 1875
Kilchoman deaths 1850 - 1875
Kilchoman marriages 1821 - 1854
Kilchoman census 1841
Rgds
L