Just checking on Forest of Dean Family History Forum - which has transcribed Marriage Allegations 1637-1837 and Marriage Bonds 1730 - 1823 in case the names you mention are family names.
I have however, so far found this entry : Sherston, Wilts inc (there are quite a few)
3 October 1678
Elizabeth HOWBOROUGHT - aged 28 (c1650) residence: Sherston, Wilts
to
John WALKER - Gentleman - residence: Horton
Event type : Marriage Allegation
---
28 November 1804, William HOBROW aged 25, Bachelor, Yeoman, residence: Sherston
Jane DAY, over 21 - Spinster, residence: King Stanley, marriage Licence to marry at King Stanley