Using Pigots Directory 1823/1824 we can find the following Webbs:
Isaac Webb, 63 West Street, Brighthelmstone – Boot & Shoe Maker
– This could be Isaac Webb born about 1776 found in the 1841 census as a Cordwainer in Brighthelmstone. Then in 1851 as a shoemaker in Brighthelmstone with a birth place of Gloucestershire.
John Webb, 8 Pool-Lane, Brighthelmstone – Fruiterer
Sarah Webb, Sea Houses, Eastbourne – Baths