Hi Lindsay,
FamilySearch has his burial in Raymond & death record which approximates his birth as 1803 and birth location as Dorset which I guess you had.
The Dorset FH Society has two records of Foot births damaged by fire, one male and one female to the same couple - they appeared to be the right era but child forenames and dates were unknown...
Surname: FOOT
Parents names: William & Louisa
Place: Belchalwell
County:Dorset
Country:England
Record source:Dorset Baptisms
Checking the 1841 census, however, these parents are still alive with more children and William is shown as B:1791 so could be a sibling I guess but there seems to be lots of Foots in Dorset :(
Cheers