Hope I'm not getting bogged down here...
I have found a George Bailey b 1776 abt and a Jane b 1780 abt with the following offspring:
Thomas b Aug 1802
Ann Mar b 1807
Mary b 1808
William b 1810
Zella b 1812
They are all born in Dawley including parents and are (IGI) submitted records only.
I'm wondering if there are any other surnames in Dawley!!!
I checked out Zella because of the name, I found a Priscilla Zella Martin, nee Bailey m 1833 abt (submitted info only) to Thomas Martin, though the 1851 census shows them with 9 children. They are on all other censuses up to 1881, 1861 being interesting reading. Phew, some family, hope it's correct!
Unfortunately there are too many issues associated with Sophia Bailey without more info.