The Mexican Road Commission was a project funded by the United States to survey what became known as the Santa Fe Trail. In addition to surveying, the commission was charged with negotiating right-of-way treaties for United States citizens to travel through land owned by Native Americans.

The commission was led by George Sibley, Benjamin Reeves, and Thomas Mather.

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Submissions from 1837

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George Sibley Statement About Debt Being Paid Off, January 1, 1837, George Champlin Sibley

Submissions from 1836

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Letter from Peter Hagner to George Sibley, Benjamin Reeves, Thomas Mather, July 6, 1836, Peter Hagner

Submissions from 1834

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Letter from George Sibley to Peter Hagner, May 3, 1834, George Champlin Sibley

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Letter from Charles Gratiot to George Sibley, March 25, 1834, Charles Gratiot

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Letter from Peter Hagner to George Sibley, March 18, 1834, Peter Hagner

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Letter from Peter Hagner to George Sibley, March 5, 1834, Peter Hagner

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Letter from Benjamin Reeves to George Sibley, January 18, 1834, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, January 13, 1834, Benjamin H. Reeves

Submissions from 1833

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Letter from Benjamin Reeves to George Sibley, October 22, 1833, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, July 18, 1833, Benjamin H. Reeves

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Letter from S. Burch to George Sibley, May 24, 1833, S. Burch

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Letter from Peter Hagner to George Sibley, May 11, 1833, Peter Hagner

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Letter from George Sibley, Benjamin Reeves, & Thomas Mather to Peter Hagner, April 20, 1833, George Champlin Sibley, Benjamin H. Reeves, and Thomas Mather

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Letter from Charles Gratiot to George Sibley, April 12, 1833, Charles Gratiot

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Letter from Lewis Cass & William Ashley to George Sibley, April 12, 1833, Lewis Cass and William Ashley

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Letter from Thomas Mather to George Sibley, March 19, 1833, Thomas Mather

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Letter from Charles Gratiot to George Sibley, March 6, 1833, Charles Gratiot

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Letter from Benjamin Reeves to George Sibley, February 13, 1833, Benjamin H. Reeves

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Letter from Charles Gratiot to George Sibley, January 2, 1833, Charles Gratiot

Submissions from 1832

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Letter from Peter Hagner to George Sibley, October 6, 1832, Peter Hagner

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Letter from George Sibley to Peter Hagner, September 24, 1832, George Champlin Sibley

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Letter from Benjamin Reeves to George Sibley, September 10, 1832, Benjamin H. Reeves

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Letter from George Sibley to Josiah Johnston, June 21, 1832, George Champlin Sibley

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Letter from George Sibley to Josiah Johnston, January 17, 1832, George Champlin Sibley

Submissions from 1831

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Letter from George Sibley to Benjamin Reeves, December 23, 1831, George Champlin Sibley

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Letter from Benjamin Reeves to George Sibley, December 20, 1831, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, December 16, 1831, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, December 12, 1831, Benjamin H. Reeves

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Letter from George Sibley to Benjamin Reeves, November 29, 1831, George Champlin Sibley

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Letter from Joseph Brown to George Sibley, November 1, 1831, Joseph C. Brown

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Letter from Benjamin Reeves to George Sibley, November 25, 1831, Benjamin H. Reeves

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Letter from Thomas Mather to George Sibley, October 11, 1831, Thomas Mather

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Letter from George Sibley to Peter Hagner, October 5, 1831, George Champlin Sibley

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Letter from Benjamin Reeves to George Sibley, September 30, 1831, Benjamin H. Reeves

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Letter from Thomas Mather to George Sibley, September 20, 1831, Thomas Mather

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Letter from Benjamin Reeves to George Sibley, September 8, 1831, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, September 1831, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, August 25, 1831, Benjamin Reeves

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Letter from Benjamin Reeves to George Sibley, August 22, 1831, Benjamin H. Reeves

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Letter from Benjamin Reeves, George Sibley, Thomas Mather to Peter Hagner, June 17, 1831, Benjamin H. Reeves, George Champlin Sibley, and Thomas Mather

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Letter from George Sibley to Benjamin Reeves, May 28, 1831, George Champlin Sibley

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Letter from Benjamin Reeves to George Sibley, May 17, 1831, Benjamin H. Reeves

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Letter from Elisha Whittlesey to George Sibley, February 13, 1831, Elisha Whittlesey

Submissions from 1830

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Letter from George Sibley to David Todd, December 28, 1830, George Champlin Sibley

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Letter from George Sibley to George Shannon, December 23, 1830, George Champlin Sibley

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Letter from Elisha Whittlesey to George Sibley, December 15, 1830, Elisha Whittlesey

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Letter from George Sibley to Elisha Whittlesey, November 30, 1830, George Champlin Sibley

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Letter from George Sibley to William B. Lewis, November 30, 1830, George Champlin Sibley

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Letter from Thomas McKenney to George Sibley, June 15, 1830, Thomas L. McKenney

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B. H. Reeves, G. O. Sibley, and Thomas Mather.

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Letter from George Sibley to Thomas Hart Benton, February 2, 1830, George Champlin Sibley

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Letter from G. Gratiot to Benjamin Reeves & George Sibley, January 20, 1830, G. Gratiot

Submissions from 1829

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Letter from George Sibley to John Henry Eaton, December 26, 1829, Benjamin H. Reeves, George Champlin Sibley, and Thomas Mather

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Letter from George Sibley to Thomas Mather, September 2, 1829, George Champlin Sibley

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Letter from Thomas Mather to George Sibley, August 25, 1829, Thomas Mather

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Letter from Thomas Mather to George Sibley, June 2, 1829, Thomas Mather

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Letter from George Sibley, to Benjamin Reeves & Thomas Mather, April 20, 1829, George Champlin Sibley

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Letter from George Sibley to Josiah Johnston, February 6, 1829, George Champlin Sibley

Submissions from 1828

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Letter from George Sibley to Peter Buell Porter, December 15, 1828, George Champlin Sibley

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Letter from George Sibley to Peter Buell Porter, October 28, 1828, George Champlin Sibley

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Letter from Thomas Mather to George Sibley, August 26, 1828, Thomas Mather

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Letter from George Sibley to Benjamin Reeves, August 17, 1828, George Champlin Sibley

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Letter from Tracy & Wahrendorff to George Sibley, May 28, 1828, Tracy & Wahrendorff

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Letter from George Sibley to Thomas Mather, April 1, 1828, George Champlin Sibley

Submissions from 1827

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Missouri Intelligencer Article on the Road to New Mexico, July 26, 1827, Missouri Intelligencer

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Sibley, Mather, Reeves Ad to Sell Survey Goods, July 20, 1827, George Champlin Sibley, Benjamin Reeves, and Thomas Mather

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Letter from George Sibley to Thomas Mather, May 10, 1827, George Champlin Sibley

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Letter from Benjamin Reeves to George Sibley, May 2, 1827, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, May 1, 1827, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, April 30, 1827, Benjamin H. Reeves

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Letter from George Sibley to Benjamin Reeves, April 27, 1827, George Champlin Sibley

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Letter from Benjamin Reeves to George Sibley, April 1, 1827, Benjamin H. Reeves

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Letter from Tracy & Wahrendorff to George Sibley, March 29, 1827, Tracy & Wahrendorff

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Letter from George Sibley to Benjamin Reeves, March 23, 1827, George Champlin Sibley

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Letter from George Sibley to Mary Sibley and Josiah Johnston, January 23, 1827, George Champlin Sibley

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Letter from George Sibley & Thomas Mather to the [Secretary of War], January 20, 1827, George Champlin Sibley and Thomas Mather

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Letter from George Sibley & Thomas Mather to the Secretary of War, January 10, 1827, George Champlin Sibley and Thomas Mather

Submissions from 1826

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Letter from Benjamin Reeves to George Sibley, December 29, 1826, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, December 24, 1826, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, November 27, 1826, Benjamin H. Reeves

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Letter from Benjamin Reeves to Thomas Mather, November 19, 1826, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, November 6, 1826, Benjamin H. Reeves

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Letter from Benjamin Reeves to George Sibley, November 6, 1826, Benjamin H. Reeves

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Letter from Benjamin Reeves to Thomas Mather, November 5, 1826, Benjamin H. Reeves

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Letter from Joseph Brown to Thomas Mather, October 30, 1826, Joseph C. Brown

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Letter from Benjamin Reeves to George Sibley, October 21, 1826, Benjamin H. Reeves

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Letter from George Sibley to Benjamin Reeves, October 17, 1826, George Champlin Sibley

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Letter from Benjamin Reeves to George Sibley, October 12, 1826, Benjamin H. Reeves

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Letter from George Sibley to Pedro Martinez, August 23, 1826, George Champlin Sibley

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Letter from George Sibley to Alcade, August 19, 1826, George Champlin Sibley

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Letter from George Sibley to Joel Roberts Poinsett, June 19, 1826, George Champlin Sibley

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Letter from George Sibley to Benjamin Reeves & Thomas Mather, May 20, 1826, George Champlin Sibley

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Letter from Benjamin Reeves to George Sibley, May 19, 1826, Benjamin Reeves

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Letter from Benjamin Reeves to George Sibley, May 12, 1826, Benjamin H. Reeves

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Diary No. 5 from January 1 to March 31, 1826, George Champlin Sibley

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Letter from George Sibley to Benjamin Reeves, February 7, 1826, George Champlin Sibley

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Letter from George Sibley to Benjamin Reeves & Thomas Mather, February 7, 1826, George Champlin Sibley

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Letter from George Sibley to Benjamin Reeves & Thomas Mather, February 7, 1826, George Champlin Sibley

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Letters from George Sibley to Benjamin Reeves & Thomas Mather, February 7-16, 1826, George Champlin Sibley

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Santa Fe Trail Map, circa 1826, Mexican Road Commission