Information sur la source
Ancestry.com. Pilots of the republic : the romance of the pioneer promoter in the Middle West [base de données en ligne]. Provo, UT: Ancestry.com Operations Inc, 2005.Données originales : Hulbert, Archer Butler,. Pilots of the republic : the romance of the pioneer promoter in the Middle West. Chicago: A.C. McClurg & Co., 1906.
