now i've tried doing some research and the autograph from phil looks similar to his actual signature but the one fron don everly doesn't so much. through the research that i've done the only thing i could come up with is that they both have signed their names in very different ways over the years - none of them look exactly alike.
my question is are these autographs authentic? is it possible that don's singature just changed over the years?
i would appreciate any help that you guys could give me! thanks in advance!

here is a direct link to the autographs in question:
http://i164.photobucket.com/albums/u27/ ... era111.jpg
i've also had a lot of trouble finding address' to contact the everly brothers, so far i've found nothing useful.