While doing a search for "early American Fiddle", I came across The Hamblen Collection. It is a collection of violin tunes, popular during the early 1800's as played by David Russell Hamblen (1809-1893) and his son Williamson (1846-1920) arranged and copied by A. Porter Hamblen (1875-195-) son of Williamson. The Hamblen Collection is still available today at The Library of Congress.
You can download the entire Hamblen Collection sheet music in Zip File format at my website, Fiddling for Older Folks - The Hamblen Collection. (The file size is too large to upload to the forum - over 6MB.)
I also have some pictures and information about another website, Christian Wig, a musician who has recorded many of The Hamblen Collection tunes. These tunes are available on Wig's CDs and sample tracks are available on his website.