This image is a derivative work of the following images: File:Draper_Henry_W_signature.jpg licensed with PD-US 2008-10-03T00:40:59Z Astrochemist 347x497
DescriptionDraperHenry W signature.jpg English: Picture of HenryDraper, the American physician and astronomer Date 1888 Source Frontispiece of Memoir of Henry