Hello Kerrmain,
I vowed back at the beginning of February that I would never become involved in another person's query unless it had a direct link to my own tree. However, on reading your post today I felt it would be churlish not to reply, hopefully you will not be as rude and insulting to me as the previous member was back on February 1st.
The family you are looking for are interred in the old burial ground at Cambusnethan village in Wishaw. It is the churchyard attached to what is now the ruined old parish church of Cambusnethan and this is all situated next to the municipal cemetery.
The written records for this part of the burial ground only begin in earnest from about 1875. From 1860 onwards, there are records of individual interments mixed in with the gravediggers day book from the municipal cemetery but these records are not complete. Prior to 1860 all the records were kept in the gravediggers head!
So, according to the written records (1875 +) there are only 2 interments in that plot. Namely -
JOHN KERR, aged 81 years. Interred in the centre plot - 27th January 1897.
CHRISTINA KERR, aged 85 years, interred in the centre plot - 6th June 1922.
No other burials recorded for that lair in the "Lair book" and according to that record, the lair was owned by John Kerr and C. Strain.
However, after a trawl through several books, I found the following four entries mixed in with pauper burials in the new (municipal) cemetery records.
MARY KERR, Wishaw, aged 5 years.
Parents - John Kerr & Christina Strain.
Interred in the old churchyard on 26th October 1866.
JOHN KERR, Wishaw, aged 11 years.
Parents - John Kerr & Christina Strain.
Interred in the old churchyard on 18th January 1871.
BARBARA KERR, Wishaw, aged 4 years.
Parents - John Kerr & Christina Strain.
Interred in the old churchyard on 20th February 1872.
CHRISTINA KERR, Wishaw, aged 8 years.
Parents - John Kerr & Christina Strain.
Interred in the old churchyard on 2nd April 1872.
(I would take a guess and say that these 4 children all died from Cholera, which was rife in this area at that time).
The icing on this particular cake is - There is a stone at this lair.
The inscription reads -
"Erected by John Kerr in memory of his three brothers, William who died 4th September 1835 aged 16 years. George who died 1st January 1839 aged 37 years and Thomas who died 2nd March 1839 aged 16 years. Also his mother Mary Braidwood who died 9th July 1854 aged 76 years".
Here is a not very good picture, I will try and go back over and take a better one, this was taken a few years ago but I think the stone should still be there.