Merriwether Lewis                                                                                             William Clark   

                                                                     http://www.lewis-clark.org/

                                                       http://www.nationalgeographic.com/lewisandclark/

foto lewis:

http://international.loc.gov/cgi-bin/query/i?intldl/mtfront:@field+(NUMBER+@band(mtfph+g0014)):displayType=1:m856sd=mtfph:m856sf=g0014

 foto clark:  

http://international.loc.gov/cgi-bin/query/i?intldl/mtfront:@field+(NUMBER+@band(mtfph+g0013)):displayType=1:m856sd=mtfph:m856sf=g0013