Year: 1823
Month: Jun
Day: 29
Parents_Surname: EVERETT
Child_Forenames: Thomas
Fathers_Forenames: Thomas
Mothers_Forenames: Amy
Mothers_Surname:
Residence: Tithing of Blakeney
Occupation: Labourer
Officiating_Minister: C P N Wilton Sub Curate
Event: Baptism
Memoranda:
Notes:
Register_Reference: P50 IN1/1
Page_Number: 68
Parish_Chapel: Blakeney

Name: Thomas Everett
Estimated Birth Year: abt 1824
Year of Registration: 1917
Quarter of Registration: Jan-Feb-Mar
Age at Death: 93
District: Westbury On Severn
County: Gloucestershire
Volume: 6a
Page: 448

I guess you have two choices if yo are sure a will exists.

a/ submit a postal request based on period 1901 / 04, then 1904/08, 1909/1912 etc

b/ use 1837online or local family history centre to search BMD's to find his quarter of Death, probably in Westbury on Severn

then

"...
In many cases you can save a lot of time and money by making the search yourself, but there is a postal service by which a search is made on your behalf for a period of four years. There is a fee of £5 for this, but this includes copies of the Will and/or grant if a record is found. It also gives you the benefit of the experience of Probate staff, for instance in knowing when to search and judging under which name the record is likely to be listed. If you want the Probate Registry to conduct a search for a period longer than the standard four years, there is an additional fee of £3 for each 4-year period after the first four. Thus, an 8-year search will cost £8, a 12-year search £11, and so on.

If you want to make a postal search, contact:

The Postal Searches and Copies Department
The Probate Registry
1st Floor
Castle Chambers
Clifford Street
York YO1 9RG

Tel: +44 (1904) 666777
Fax: +44 (1904) 666776

Applications for searches must be made in writing, and give the full name, last known address and date of death of the person concerned. A search can normally be made using less detail, but if the date of death is not known, you must state the year from which you want the search to be made, or give some other evidence that might indicate when the person died..."

1881 Silver Street, Little Dean
Cordelia Everitt abt 1818 Westdean, Gloucestershire, England Wife ,
Thomas Everitt abt 1823 Awre, Gloucestershire, England Head

1871 Littledean
Cordilla Everett abt 1818 Niney Hill, Gloucestershire, England Wife
Thomas Everett abt 1823 Brains Green, Gloucestershire, England Head

1861 Bradley Hill / Brains Green
Cardila Everetts abt 1818 West Dean, Gloucestershire, England Wife
Thomas Everetts abt 1823 East Dean, Gloucestershire, England Head

1851 Awre
EVERETT Thomas 28 Labourer Awre
Cardeliah 32 Awre

Possible christening

THOMAS EVERETT
----------------------------------------------------
Event(s):
Birth:
Christening: 29 JUN 1823 Blakeney, Gloucester, England

--------------------------------------------
Parents:
Father: THOMAS EVERETT
Mother: AMY
--------------------------------------------------
Messages:
Extracted birth or christening record for the locality listed in the record.
The source records are usually arranged chronologically by the birth or christening date.
-------------------------------------------------
Source Information:
Batch No.: Dates: Source Call No.: Type: Printout Call No.: Type:
C023431 1813 - 1860 0091513 Film 6911602 Film
Sheet: 00

You can find information on wills where probate was granted later than 1 January 1858 at the Court Service website (www.courtservice.gov.uk). They have a section on Probate Records and Family History. Copies of the index to wills from 1858 to 1943 are available on microfiche at The National Archives and the Family Records Centre.

The National Library of Wales holds volumes of copy wills after 1858, up to 1940.