Just keeping this alive in case someone comes along in the future, i have thus far not been able to make much progress on the previous thread.
Susannah seems to have vanished along with her son John, and after trawling SEAX digital images from Burnham-on-crouch and the surrounding area i can find no reference to any Deed, Ded, Dade or Deds so can only assume that the family moved into the area, i have also been advised there is a list of some kind kept of people that moved into the area that may help confirm this (if they were listed/the correct list still exists).
So as before, help?