There is a marriage 1847 for William Rudkin and Caroline Hooton Westlade/Westlake - presumably variants of Wishlade so this would lead you to think that the children were illegitimate, having Hooton as a middle name. However,she is with Edward and Mary in 1841 - no relationships given.
BUT if these (1841) are the children of Edward Hooton and Mary Wishlade- then are the others Frances et al not?? Frances is on IGI as Wishleat with mother Mary. no father). They are all being born around the same time - and why would Frances be in the workhouse?
Interestingly (if you go for this kind of thing) Selina and Elizabeth were both christened - same day in 1849 - wonder if these were adult baptisms of the same children of 1841 and they were then baptised as Hooton??
Tricia- please look over everything, then when you have sorted it

let us know!