I too am a granddaughter of David Cairns Aitken. He married Catherine (Kate) Leahy in 1891. A daughter of theirs, Mary Janet (or Janette) married William John Rudkins. My mother, Moira Estelle, was a daughter of theirs. She married Norman George Walsh. I am the eldest of their children. I can fill in a fair bit of information about David and Janet'sfamily.