From IGI www.familysearch.org
Don't know whether these are yours or not as McCallum and McNeil are common names.
John McCallum married Ann McNiel, 31 May 1823, North Knapdale, Argyll Scotland.
Christening of children of John McCallum and Ann/Nancy McNeil. Sometimes her name is entered as Nancy, sometimes as Ann.
Niel McCallum, 01 Oct 1826, North Knapdale, Argyll
Donald McCallum, Oct 1824, as above
John McCallum, 24 Feb 1831, as above
Duncan McCallum or McNeil, 18 May 1823, as above