This seems to be nearest.

IGI: William Squire Chr: 10 Sep 1806 Fa: John/Mo: Sarah
ST PETER CATHEDRAL,EXETER,DEVON

This could perhaps be William's brother.
1851 Census: Silver Street, Thorverton, Tiverton, Devon
John SQUIRE Head M 57 M Ag Lab Thorverton-DEV
Mary SQUIRE Wife M 49 F Cadbury-DEV
Sarah SQUIRE Daur U 16 F Scholar Exeter-DEV
Susan SQUIRE Daur 10 F Thorverton-DEV
Hope it helps.Sue