Hi I also research William Bennett in Staffordshire, they should come with a warning " there are a lot of Williams.
As I see this
You have several
William Bettetts
Born in Sedgley, Staffordshire at the time
09 OCT 1808 to James and Rosanna
09 JUN 1811 to William & Jane
17 MAY 1812 to John & Elizabeth
1812 to Joseph and Elizabeth Harvey (said by others to have married a Sarah – where is the evidence!)
07 JUN 1814 to William and Harriett
All of these are form Familysearch.org
One should be yours
So if we cross off some, the one that is left is yours
Okay in 1851 HO107 piece 2030 folio 18 page 28
A William mar to Mary Ann is also with his father James so the 1808 is gone
09 JUN 1811 to William & Jane
17 MAY 1812 to John & Elizabeth
1812 to Joseph and Elizabeth Harvey (said by others to have married a Sarah – where is the evidence!)
07 JUN 1814 to William and Harriett
next
1814 to William and Harriett
Could be but 3 years off your 1811 date would like to check this one more but crossed off now because three years out, and other look more likley.
now
09 JUN 1811 to William & Jane
17 MAY 1812 to John & Elizabeth
1812 to Joseph and Elizabeth Harvey (said by others to have married a Sarah – where is the evidence!)
next
1851 HO107 piece 2030 folio 377 page 14
William is unmarried son of widow Elizabeth born Sedgley also with sister Ann age 55 in 1851
We know yours was marred in 1833 so this is not yours
Also Joseph Bennett married Elizabeth Harvey at 21 DEC 1806 Sedgley,Stafford,England so It seems probable this census is the John & Elizabeth (could do more on this to get more evidence).
Now
09 JUN 1811 to William & Jane
1812 to Joseph and Elizabeth Harvey (said by others to have married a Sarah – where is the evidence!)
William and Jane do have a Henry Bennett in 31 AUG 1817, Sedgley,Stafford,England
And as we see above, so in answer to your question am I connected with Henry Bennett, your William will need to be this one.
There are two burials for William B children both born in 1816 (not a help)
1851 HO107 piece 2021 folio 661 page 42
William Bennet / Sarah sarah is born Bilston Wm is occ. Butcher
You are saying your Sarah Flavel is from Gornalwood Staffordshire
While they are both close to Sedgley one is south and one is north So I think we can say the William Wm Bennett the butcher is not yours
Also think he is alive in 1881 RG11 piece 2870 folio 146 page 1
I can see more research is needed, But I hope there are a few bits here that can help.
Peterson