Stevensons Garage, Tonbridge?

Bit of a weird one maybe, but my 88" Diesel Stationwagon 1975 S3 (Gerty) was originally supplied by a garage in Tonbridge, Kent called Stevensons - Does anybody know anything about this garage? does it still exist (albeit under another name) as I can find no information at all about it on google - obviously not a desperate issue, but just something else in Gerty's history that fascinates me

Thanks