Woolara, we just had the same problem in your thread about Lemon -- it turned out they had emigrated in 1837 so me looking in the 1841 census was pointless. (Is this John Colwill related to Charles Colwill in that thread I wonder?)
The thing to do is give the facts that you have, when you ask a question -- in these cases, specifically, when did your people of interest leave England, and who were they, and what information do you have about them? Names, dates, places -- all the things you know that nobody else does.
(You may have noticed this pattern in your other threads too -- you ask for info about Person X and give a few sketchy details, someone offers a suggestion of a household in a census, and you say thanks but ... Person Y would have been a decade or two older than the one in that household ... Giving all the relevant info to start with prevents false starts and wasted effort like that.)
What you are actually looking for is the family (parents ...) of Elizabeth Hawkins who married John Colwell in 1812 in Kilkhampton?
You likely have an idea of her age when she died, which would be the starting point for looking for her baptism, but you're the only one who knows that at this point!
The only way to tell whether those Hawkins-s born in Kilkhampton were siblings of your Elizabeth would be to find baptisms for one or more of them, and for her.
