I am descended from this family as well. Sarah Buss, born 1806, daughter of James Buss and Sarah Purrock was born in Billingshurst, but her father was from Abinger. She married Jesse Mewett in Brightling, East Sussex, in 1825. They are my three greats grandparents. For some reason there are numerous connections between Abinger and Brightling. Have you confirmed Jonathan as your ancestor yet?