Hi, Judi -
How do you descend from William and Ann?
I am pretty certain we have established that William WAS Ravensden born - there is no proof by way of a baptism, but the circumstantial evidence is just about overwhelming.
And if he was Ravensden born, then he is the son of John and Sarah - there just weren't any others around to be his parents!
The IGI batch has no other Armstrongs. The 1803 Muster Roll shows only one Armstrong (though this might not be conclusive, as others might have refused?). The 1831 population count shows only one Armstrong, i.e. John Junior. And 1841 shows only one Armstrong family - John Junior and his second wife Eleanor. Poor Jane was long gone....
I would be happier if I could discover the origins of Thomas and Phoebe. They may have been married in Upper Gravenhurst, but there is no evidence that either of them were baptised there. So where did they come from? I have drawn a complete blank with both of them.
Come to that, where did John Senior in Ravensden come from at about the same time?
Still, I guess it would be no fun if it were easy.....