I'm pretty certain this must be her father here at the bottom of the left-hand page in the 1841 census:
John Laycock 1841 census
So might her mother be Sarah? Needs further research.
I give some reasons why I am fairly confident these are the right Laycocks on my thread for my GGF James Berry, Mary Ann's son.
James Berry MFF
Have to leave this now. I'm meant to be traveling in the morning.