dyzarts, Hampshire late 18th Century

[soldiermawr]

My wife ancestors are Dyzarts who resided around Chertsey Surrey in the 19th Century and later in North Kent. The earliest Dyzart I can find is John born 1777 in Winchester according to a later census.
I have visited Winchester archives and they have only one Dyzart baptism  (not John), for that period.
The name is variously listed as Dysett, and Dysart.
Thank you.