When Mary Ann married, 22 September 1867, she gave her father's name as John Underwood, a carrier:
https://www.ancestry.co.uk/imageview...64?pId=3687215
Records for Yardley Hastings are poor at according any special identity to the lumpen mass of labourers - many were not even necessarily ag labs. Certainly the John under whose roof Mary Ann dwelled in 1841 was never dignified by any occupation other than labourer. Was she just trying to impress the new in laws, secure in the knowledge that they would never actually meet her relations?
The old inlaws, however, intrigued me. Sarah, James and Caroline in 1841 were in the household of John and Lucy Underwood:
https://www.ancestry.co.uk/imageview...86?pId=8851914
This John is John [Saunders] Underwood, baptised 24 April 1807 in Gretton, son of John and Mary:
https://www.ancestry.co.uk/imageview...14?pId=8945987
He married Lucy Whitney in 1830, but unfortunately the register does not state whether he was a widower:
https://www.ancestry.co.uk/imageview...14?pId=2605343
But, this means that John [Saunders] Underwood must have been married, at least five years earlier, when he was a mere eighteen years old - and there was no baptism in Yardley Hastings c 1825 of a Mary Anne, daughter of John.
tbc