Polly - I too am happy to make the connection although mine is not direct to Spriggs. Zelia McCoy (a sister to Louisa) married Benjamin McKenzie; Benjamin's sister, Mary, married Samuel Wragg. Mary McKenzie and Samuel Wragg are my direct ancestors.
I got notice of this post just today but have located your file on Ancestry and will go over it closely later. I am sending directly to you what little I have on these families.