Fascinating subject, isn't it? Anielka is our resident expert on JA's relaticves- she has made many posts on this kind of thing, which yo umight find interesting. She's a bit busy these days, but pops in when she has time.....

I find your connections very interesting, myself, although I have little head for family ties and frequently get them jumbled. I would wish you to not persue the last one too assidiously, however. The place-name 'Wickham' is extremely common -there is one between Steventon and Winchester, for example. Also there was a family of Wickhams who were the Austen's neighbours in Chawton. Which connection do you think is more likely?