Dee ihe na-aga n'ihu na paragraf a - A họpụtara ya dị ka onye na-elekọta ndị agha mmiri nke United States. N'oge ọ na-eje ozi n'ụgbọ mmiri, ọ buru ụzọ jee ozi na USS "Richmond", mgbe ahụ USS "Minnesota". Mgbe ọ nọ n'Eshia, Sprague dere akụkọ ndị o depụtara na Boston Herald. Mgbe Sprague nọ n'ụgbọ mmiri ya na Newport, Rhode Island, na 1881, o mepụtara ígwè na-enye ọkụ bụ́ nke a na-atụgharị atụgharị. Mgbe e bufechara ya n'ụgbọ mmiri USS "Lancaster", bụ́ ụgbọ mmiri bụ́ isi nke Ndị Agha Mmiri nke Europe, ọ rụnyere usoro mgbịrịgba eletrik mbụ n'ụgbọ mmiri United States Navy. Sprague hapụrụ ụlọ ọrụ ya ịga ihe ngosi ọkụ eletrik mba ụwa
nke 1881 na Paris na Crystal Palace Ngosi na Sydenham, England na 1882, ebe ọ bụ na juri nke awards maka gas engines, dynamos na oriọna.