Ceri Crabbe in UK,
Sorry but Lindsay Crabbe Is unaware of her Crabbe genealogy, but a few in her family are aware.
Her Crabbe genealogy does not go back to Wales, but to William Augustus Crabb chr 1743 in Cornwall County, England and is proven by England Parish records and Wills and goes back in time many, many generations in Cornwall County, England.
I am double related to William Augustus Crabb's parents. A living member of my Crabb family has done a DNA test and I have his results.
May I suggest your father being his surname is Crabbe have a DNA test. And I suggest familytreedna.
Marsha Berry
USA