All I have actually are what I transcribed in the 1970's when I lived in the area. Since Snyder County was formed from Union in 1855, I focused on "earlier" wills listed in the townships that wound up in Snyder County. This is what I have for Jacob Dinius:
Jacob Dinius, Middle Creek twp, died 1842
wife - Maria
children - John, Catherine m. David Snyder, Michael, Mary m. David Breon, Rachel, Hannah, and Sarah.
Hope this helps - and again, this document was found at the courthouse in Lewisburg (not Middleburg).