Regarding Matthias, I have an old newspaper article from Wilkes-Barre, the title is "The people are gone but their names live on" by Mary Therese Biebel. It tells about a young soldier named Matthias Hollenback swimming the Susquehanna River on June 30, 1778 to save his life during the Battle of Wyoming. Plus more information.
I am trying to connect my line with him or his family. John Hollenback is the farthest back that we go, born 1782 in PA. He married Mary Catherine Bucher and they eventually came to Indiana. Do you by chance have any information on them, or would you like the rest of the article?