Gerry
Thanks. I have walked around the area so many times, I think that the head stone must be missing.
Another visit and contact with Ian I agree is the best way to go.
Although all points to lair 110b, when I visited the Motherwell Heritage Centre the man looked at a map of the cemetary and could not find Alexander on the map of lair names and numbers, but my ancestors are definately buried there, according to the certificate, their (Motherwell Heritage Centre) CD and my Great Aunt.
Thankl you again
M