The existing Bavington Hall (which was almost certainly never a castle, or the site of a castle)is famous for its connection with the Schaftoe / Shafto family (as in the nursery rhyme 'Bobby Shafto went to town' etc). It is in Little Bavington, Nortumberland - the relatively 'modern' name equivalent of what was 'Babington'. (The interchange of 'B's and 'V's is common in language development, and if you think about it you'll find some good examples, especially between French / English / Spanish.) Just a few days ago I read in 'The Times' (London) that the current owner, a millionnaire who had spent a fortune renovating the property and opened it to visitors, decided to close to visitors because he was fed up with their behaviour when they visited his home! Amongst other things they frequently complained that it was 'hard to find'. In fact, I don't think the 'Bavington' family is connected with the Babington family, except by geographical origin. I think you should explore the incidences of the Bavington name in the USA,(both people and places) and where they are found. Then look around each area for Northumberland / Durham (England) other places e.g. Washington. You may well find a pattern, especially in Philadelphia and maybe Maryland. You should be aware that just because someone is 'de Babington' in e.g. 1250, it doesn't mean in any sense that they are related to any other 'de Babington' - just that they came from the same village / town. Surnames (family names) as such were not widely in use until a couple of hundred years later. I do believe that ALL Babingtons / Babbingtons / Bavingtons have a geographical connection (way back) with Bavington / Babington in Northumberland England. I also think that the owner of Bavington Hall still lets out holiday cottages, but make sure you take an umbrella and a raincoat if you visit - the weather in that part of England is very unpredictable. I hope this all helps and encourages you to look for people / places in the USA called 'Bavington' - there is a big story to be told, and I think it might have a lot to do with coal and miners, especially in Bavington Philadelphia (I think it is!).