Letter from Stephen Mather, National Park Service to Carl Hayden on payment to W. W. Bass.

Letter from Carl Hayden to W. W. Bass congratulating him on his good business judgement.

Letter from J. R. Eakin to Carl Hayden justifying the value of his land at twenty-five thousand dollars.

Letter from Carl Hayden to W. W. Bass on the improvements Bass has made to the canyon and the hope that he will accept a payment of twenty-five thousand dollars for purchase of his land.

Letter from Carl Hayden to Stephen Mather requesting that congress pay W. W. Bass the sum of twenty-five thousand dollars for his properties.

Letter from Carl Hayden to Stephen Mather regarding the sale of Bass properties.

Letter from Carl Hayden to W. W. Bass regarding the poor prospects of selling his canyon properties.

Letter from W.W. Bass to Carl Hayden expressing his difficulty in selling his canyon property.

Letter from Carl Hayden to W. W. Bass looking into the sale of Bass properties.

Letter from Thomas Henry Cureton to Carl Hayden expressing a lack of interest in establishing the Grand Canyon as a national park.