Hello

I've just started my Cornish side of the family. Joseph Manley (b. abt 1801) was a lead miner in Wales who was married to Ann. She was born in Cawney abt 1807 as stated on the 1851 census and all after. Joseph however, died in 1850 so I don't know whether he was born in Cornwall or Mold, Flintshire, Wales.
I've just found on Family Search a marriage between a Joseph Manley and a Ann Dothya Reed in 1827 in Kenwyn. Their first child was born in 1829.
As I don't know the Cornish geography very well yet, my question is - is Cawney and Kenwyn near each other or the same place or parish? and am wondering whether this is the correct marriage.
Hoping someone can help and start me off on the right foot.
Regards
Bullet