N'afọ 1893, Kọmitii Na-ahụ Maka Oké Ọhịa na Pensụlvenịa nyere Lewis ọrụ ise ihe osise 50 nke akwụkwọ osisi ndị na-anọchite anya ha, bụ́ ndị e ji ihe osise mmiri mee, bụ́ ndị a ga-egosipụta n'Ihe Ngosi Ihe Nkà nke Ụwa na Chicago. E lere ọrụ Lewis anya dị ka ihe ịga nke ọma, na-emeri ya ihe nrite na diplọma, e gosikwara ọha na eze ọzọ na 1901 Pan-American Exposition na Buffalo, New York, yana 1904 Louisiana Purchase Exposition
na St. Louis.