Margaret was born in 1857. She is the daughter of Alexander Sellar.
<https://www.findmypast.co.uk/transcript?id=GBC/1861/0022070785>
<https://www.findmypast.co.uk/transcript?id=GBC/1871/0026180282>
<https://www.scotlandspeople.gov.uk/record-results/139927282063e14a39f3835>