Hello Tony I have an aunt Betty (Betsy or Bet) Knibb in my tree, born 1909, Dorridge Warwickshire, died 1998, Boscombe Hants. Unfortunately this is not the Betty Knibb you are seeking but, because of geographical proximity and near dates, I give this info so you don't waste time searching this line in case you come across it elsewhere. Incidentally, like your ancestor, my aunt Betty was also a very kind, it must go with the name!! Robin