I have found an Elizabeth Caswell baptised 24 Nov 1849 at Waters Upton Shropshire, father Thomas Caswell and Mother Ann, however, on the 1851 they are living in Wellington and Elizabeth is 1yr 4mths.Thomas (aged 27) is ab ag lab born Kinnersley. Ann (aged 25) was born Waters Upton and their surname is transcribed by ancestry as casewell but on the original image it is Caswell.
However, by 1861, Thomas and Ann have more children, Ann 9, Benjamin 7, Edward 5 and Thomas 2, and they are recorded as Careswell by ancestry and in the original entry, Elizabeth, who would have been just over 11 is missing from the household,
In 1881 Thomas and Ann are in Shifnal Shropshire will Ann aged 25 (but she should be 29 if the 1861 is right) Thomas 21 and William 12.
I can't find where Elizabeth may be after 1851 but she may have died before 1861, BUT whereas I can find all their other children being baptised in waters upton or wellington, I cannot find one for their daughter Ann, Elizabeth yes, but not Ann,
I haven't found a Morris link at all, and nor a Crowborough or East Sussex.