In cases where the site lists current affiliation, I used that to locate laureates (a German-born professor working at the University of Chicago when he won the prize would thus be listed under the United States).

FORBES: American Leadership in Science, Measured in Nobel Prizes [Infographic]

Mr. Lott is a former chief economist at the United States Sentencing Commission and the author of "More Guns, Less Crime" (University of Chicago Press, third edition, 2010).

WSJ: John Lott: The Facts About Assault Weapons and Crime