Thomas Bertram and Mary Moffat

This is a very small and unusual cross shaped stone. The inscription reads:

In loving memory of

Thomas Bertram

shepherd at Cairnmuir

who died at Lanark

18th April 1913 (?)

aged 78 years

and his wife

Mary Moffat

who died at Cairnmuir

18th Augt 1878 (or 3?)

aged 37 years.