Hi
Just came across this post and I have this McCallum family in my tree, Daniel McCallum and Margaret Mckillop. Here are the details I have:
Daniel MCCALLUM born 1810 (app.), died Feb 1855 Coalminer.
Married Margaret MCKILLOP on 5 December 1833 in Campbeltown.
Margaret MCKILLOP (known as 'Betsy') born 1810 (app.), died 5 Jan 1891
She and Daniel MCCALLUM had the following children:
Catherine MCCALLUM (27 Nov 1834- )
Margaret MCCALLUM (31 Dec 1835- )
Isabella MCCALLUM (25 Feb 1839- died young)
John MCCALLUM (7 Sep 1840-1876)
Daniel MCCALLUM (13 Jun 1842- died young)
Alexander MCCALLUM (10 Mar 1844- died young)
Alexander MCCALLUM (23 March 1846- died young)
Mary MCCALLUM (22 Jun 1848- )
Flora MCCALLUM (28 Nov 1850- )
Mary McCallum married a Robert TODD in 1876 from which my line descends
I'm afraid the fathers name is definitely Daniel and not Donald in this family, which is the same as the headstone above. Let me know if you think this information matches.
Rhoda