Grapes do not often appear on their own, at least in English arms, but are to be found still on the stem as part of the vine. A Glossary of Terms used in British Heraldry, J.H. Parker, Oxford, 1894, Entry:Vine, often of a different colour to the vine plant. Its symbology is likely simply to reflect the profession of the holder, or be a play on words with the family name. A Complete Guide to Heraldry, A.C. Fox-Davies, Bonanza (re-print of 1909 Edition), New York, 1978, P264