I have had a wee look at the info I have. Chrissie and Margaret would have been my great aunts. Their brother William Kerr Davidson was my grandfather. I never knew him, he died in 1947. There were 8 children born to Robert Davidson and Marion Kerr. Robert was an engine keeper and was born in Dalrymple Ayrshire. His parents were John Davidson and Jane Dalziel who were both born in Ireland. Marion was born in 1856 in Coatbridge and her parents were Elizabeth Anderson or Lawrie and William Kerr - he was born in Thornhill Dumfries.
chrissie married Bowskill and Margaret married Crosslet - Turtle Creek seems to have been a popular destination of this part of the family.
I am currently looking into this part of my family and happy to share info - not sure how that is accomplished off line.
Your post crossing over with this one
Children of Robert and Marion are : John,Elizabeth, Jane, Marion, Christina, Joseph, Margaret. In 1891 the family were living at 15 Sunnyside Road Coatbridge. Robert died in 1912 aged 59 and Marion died in 1919 aged 63.