John was prob s/o henry clucas + eliz samsbury - however the 1841 census seems to have ages of two child reversed - in 1841 Henry + eliz are at Surby (rushen) along with her mother - henry is a lab.
by 1851 Henry appears to be remarried to Isabel clarke m Rushen 18460326 - now a fisherman at ballacurry (rushen) living with her fa.

Henry appears to be s/o thomas cubbon + margaret watterson

the one query is that I can't find a burial for Eliz in the time period