For Those of you researching the Nay surname there is a great book out called "Genealogy of the Nay Family 1743-1949 by Earnest Omar Nay. You can read the entire book on Ancestry.com. It starts with Johann Jacob Nay from Germany.
Johann Jacob Nay 1732 to 1828
Joseph Nay 1768-1851
Elza Nay 1804-1892
This is the line I have been researching from the book. I hope this helps some of you out...