Warrington is a pretty common surname in Sussex Co. and from what you've told me I don't see an obvious connection. The Warringtons in my husband's family are all given names, almost surely indicating a connection to the Warrington family, but much farther back than you've mentioned. My earliest, Warrington Owens, d. 1811 and I don't know when he was born. He is the father of Elizabeth who married Ebenezer Wilson and named a son Warrington Wilson. I'd love to find out how Warrington Owens got his name.