Not sure if this chat is still running, but (just to complicate things a bit), there is a William Applin, born c 1815 in Cranborne, Dorset, living in Southampton, Hampshire, in the 1851 census. He is a baker. I noticed him because my paternal family are Aplin (bakers and millers from Corfe Castle in Dorset), and he was living next door to my maternal Payne ancestors from Southampton.