Letter from L. S. Williams to Carl Hayden suggesting a boundary amendment to the national park bill.

Letter from L. S. Williams to Carl Hayden stating there should be no objection to Saginaw and Manistee Lumber Company having their timber contract extended as it is greatly favored.

Letter from L. S. Williams to Carl Hayden about visiting Mr. Buggeln to discuss proposed park boundary changes.

Describes the evolution of transportation routes and transportation methods in Pima County throughout time, and the effect that modes of transportation have had on the size and form of the community. Stage, freight, and railroad transportation followed the main historic corridors established by previous cultures and technologies.