VERY RARE WW1 miniature political drawing of President Woodrow Wilson Quo Vadis

Here is your chance at a rare piece of Political American Ephemera from WW1 it is a 2 x 2 inch ink rendering By Garland Sherman of then President Woodrow wilson on what appears to be some sort of subscription paper probably to a newspaper . I have not been able to identify who Garland Sherman is and if any one knows I would love to be educated Signed and dated Apr. 25 1915 ... 12 days before the Lusitania was torpedoed and he threatened to enter into the war . I Purchased it ( in a book Titled Quo Vadis - the book is quite desirable as well as the ink rendering ) several years ago while traveling in the southern states on a road trip I have mounted it into a small walnut frame which is newer but it protects and displays it well . You will receive the book all of it's pressings as found and the artwork and the frame .