From GFHS Marriage Index:
18 October 1819 Daniel JACKSON married Elizabeth HAWKER of Hundred of St Briavels by Banns at Staunton near Coleford.

This baptism from Drybrook Parish Registers:
Record_id 6128
Entry Number 170
Year 1820
Month Jul
Day 30
Parents Surname JACKSON
Child Forename(s) William
Father's Forename(s) Daniel
Mother's Forename(s) Elizabeth
Mother's Surname
Place of Residence Little Dean Hill Woodside
Occupation Labourer
Officiating Minister J. Turner
Event type C
Memoranda
Notes
Register Reference P109 IN 1/1
Page No 22
Parish Drybrook

Mike