Sounds to me like you've already got quite a lot to go on there, Jane.
Have you cross-referred what you know with the pubhistory.com website? They may have some stuff that you don't have; and if you have stuff that they don't have they'll be really pleased to hear from you.
Best wishes with your Jupps. As I've mentioned before, I think, it's my wife's family name. We've not yet invested in any certificates or other costly documents for building her family tree yet, so the furthest we've got back in the pure patrilineal line is her great x4 grandfather John Jupp of Slaugham who married Sarah Beeven in Cuckfield on 16 September 1801.
Their only child, so far as I am aware, was my wife's great x3 grandfather John Jupp, who was baptized in Cuckfield on 5 October 1806 and married Hannah Card in Hartfield on 27 May 1833. John was an agricultural labourer and seems to have been fairly peripatetic, as his 6 children are born in all sorts of different places - East Grinstead, Westhampnett and Cuckfield. Their names were Hannah, John, Charles, Thomas, Mary Ann and Abraham.
Their youngest, Abraham, was my wife's great x2 grandfather. He started out as an East Grinstead shoemaker, then moved into London where he became a police officer. He married Mary Lupson, who had been born in Ely, in Camberwell in 1872, and they moved to Ely, then Paddington, then Chatteris. They had a total of 12 children, with wonderful names like Millicent Martha Jupp. Thereafter, the descendants of Abraham Jupp were Fenlanders ...
I don't know if any of this ties in with any of your Jupps; but if it does do please drop me a PM