Mezue ahịrịokwu a: Selfridge nọ na Presidio n'oge agha
oké ala ọma jijiji mere na San Fransisko n'April 18, 1906. Ndị otu ya sonyere na nyocha na nnapụta yana ọrụ nhicha. N'afọ 1907, e kenyere ya ọrụ na ngalaba ụgbọelu, US Signal Corps na Fort Myer, Virginia, ebe e mechara kụziere ya ka ọ na-anya ụgbọelu. Ọ bụkwa onye nnọchi anya gọọmentị United States na Aerial Experiment Association, nke Alexander Graham Bell duziri, ọ ghọrọ odeakwụkwọ mbụ ya.