The intervening nine years must have added considerably to your knowlege!!
I have two Springetts in my tree - the Luke you mention. His youngest son Henry married Emma Cant, the daughter of Mary Ann Lappage and Zachariah Cant in the Lexden reg. district in 1868.
My other Springett is also a Lappage connection - she is Mary Springett b. cir 1735 who married John Lappage in Stanway on October 16th 1755. I know nothing whatever about her. Do you?
Mary and John had children Mary (who married Wm Potter and whose son, also Wm, was hung at Chelmsford gaol in 1814), William (b.1759 d.bef. 1767), Ann (1761-1781), Judith (1763 - married John Andrews Stanway 1785), John (1765 - married Mary Howe in Copford in 1784), William (my 4 x gr grandfather 1767-1841 married 1.Jane Thorington and 2. Sarah Drane), Abraham (1770-1786) and Hannah (1772-1772).
I would very much like to have any further information.