Ysleta-Sonora Mining Company
August 20, 2026
The Ysleta-Sonora Mining Company, incorporated in Arizona and also operating as Compania Minera Exploradora de Sonora, S. A. in Mexico, was headquartered in Ysleta, Texas, with an Arizona office in Tucson. Its officers were George Pendell, president; J. W. Riordan, vice-president; and W. T. Duncan…
Active Membership Required
Full access to the digitized archives and AI-extracted texts is exclusive to active EPCHS members. Please subscribe or renew your membership to unlock this section.
Subscribe / Renew MembershipAlready an active member? Log In