Thank you so much. =)
It is the right spelling of the name; the family originated in Somerset, this was the first generation to live in Ferndale, so it doesn't surprise me that there aren't all that many.
I know it was also spelt Keyford and Caiverd at some point - but that was a few generations back, and all the records I have found consistently state "Cayford" since. =)
Of the ones you've given, I think that:
Fredrick W was Frederick's son - "Frederick Worthy"
G Lewis - Possibly also Frederick's son. "George Lewis"
Robert - Lewis' grandson.
((And possibly the others are ones I don't know about - Lewis seems a likely relation for obvious reasons. =P ))
Also Mary Ann was Frederick's wife, so that's the most exciting to see. =) I'll have to try and find that one!
I wonder why he's not listed, though. Is there any chance the records could have gone missing?
Thank you so much for the information. =)