The 1841 Census tells us that William was not born in Gloucestershire. His younger brother James was and the birth registration is in GlosBMD Index:

Child Surname Child Forename Father Surname Mother Surname Mother's Former Name Year District Office Register Entry
LINGING James LINGING LINGING FIELD 1839 Forest of Dean Chepstow, Lydney 1 382

A search for a marriage between William Linging and Hannah Field produces this entry on Ancestry:
Name: William Linging
Gender: Male
Marriage Date: 26 December 1833
Marriage Place: Allensmore, Hereford, England
Spouse: Hannah Fields

Hannah gives her place of birth as Bodenham, Herefordshire and William Senior as Bacton, Herefordshire.

Mill Church could possibly be Michaelchurch but no evidence to support it.

Mike