People / Pierre Dorion, Sr.

Pierre Dorion, Sr.

On 12 June 1804, while heading up the Missouri River southwest of present-day Dalton, Missouri, the expedition met a contingent of boats led by fur trader Pierre Dorion, Sr. He quickly agreed to join the Lewis and Clark Expedition, and one of the enlisted menJohn Robinson, Ebenezer Tuttle, or Isaac White—was sent home with Dorion’s flotilla.

Dorion had previously lived with the Yankton Sioux for twenty years, and he proved to be a gifted interpreter and knowledgeable diplomat. The captains commissioned Dorion:

“to act with a flag & some Cloathes & Provisions & instructions to bring about a peace with the Scioux Mahars, Panies, Ponceries, Ottoes & Missouries— and to employ any trader to take Some of the Cheifs of each or as many of those nations as he Could Perticularly the Sceiouex.”

The expedition boats left Dorion with the Yanktons,[1]Some historians classify the decision to leave Dorion as a major mistake as it left the captains without a reliable interpreter when meeting with the Lakota Sioux. Stephanie Ambrose-Tubbs, The Lewis … Continue reading and he later took a delegation of Yankton chiefs to St. Louis. Returning from St. Louis with fellow diplomat and interpreter Joseph Gravelines, he met the home-bound Lewis and Clark Expedition. Any news from Dorion seemed to be overshadowed by Gravelines’ letter from Thomas Jefferson informing the Arikaras of the death of one of their chiefs visiting Washington City. Dorion would continue negotiating with various Indian nations and worked under Clark as an Indian subagent.[2]Moulton, Journals, 2:295n3.

Related Pages

Notes

Notes
1 Some historians classify the decision to leave Dorion as a major mistake as it left the captains without a reliable interpreter when meeting with the Lakota Sioux. Stephanie Ambrose-Tubbs, The Lewis and Clark Companion: An Encyclopedic Guide to the Voyage of Discovery (New York: Henry Hold and Company, 2003), 95–6.
2 Moulton, Journals, 2:295n3.

Experience the Lewis and Clark Trail

The Lewis and Clark Trail Experience—our sister site at lewisandclark.travel—connects the world to people and places on the Lewis and Clark Trail.

Logo: Lewis and Clark.travel

Discover More

  • The Lewis and Clark Expedition: Day by Day by Gary E. Moulton (University of Nebraska Press, 2018). The story in prose, 14 May 1804–23 September 1806.
  • The Lewis and Clark Journals: An American Epic of Discovery (abridged) by Gary E. Moulton (University of Nebraska Press, 2003). Selected journal excerpts, 14 May 1804–23 September 1806.
  • The Lewis and Clark Journals. by Gary E. Moulton (University of Nebraska Press, 1983–2001). The complete story in 13 volumes.