Hi yes I think it is the right one as the names and places all seem to add up. I have found Williams father (William Clarke) and mother (Ellenor) head stone in st peters peel too. Found the street in which Robert Clarke had his Brewery and there seems to be only 1 building which I think it could be as the others are small cottages. I have a photo of a bakery on Douglas Street but no date or names so couldn't say who they are but I would imagine it was the same building.