As I said previouslyyour names match up with Dave Dobson in Canada.I have e-mailed him with your names you are researching and given him this website to contact you.
I do believe that somewhere we do have a link as my 5 x Gt. Grandfather lived at Flights Farm Ledbury and it was passed to his youngest son John.I do believe that Dave's ancestors had some connection with Flights Farm which makes me think there is a connection.
According to the tree I have in front of me your Joseph b1757 Cradley married to Hannah Powell is listed as having parents Joseph b1714 Cradley married to Dinah.
Please keep in touch and let me know if you have any luck with Dave and if I get any further information will contact you.