1To Thomas Jefferson from William Clark, 24 July 1803 (Jefferson Papers)
I had the honor of receiving thro’ Captain M: Lewis an assureance of your Approbation & wish that I would Join him in a North Western enterprise. I will chearfully, and with great pleasure Join My friend Capt Lewis in this Vast enterprise, and shall arrange my business so as to be in readiness to leave this Soon after his arrival. May I request the favour of you to forward the inclosed letter...
2To Thomas Jefferson from William Clark and Meriwether Lewis, 18 May 1804 (Jefferson Papers)
The following is a list of Articles forwarded you by Mr. Peter Chouteau . Minerals . No. 1. A specimen of Silver Oar from Mexico No. 2. ditto of lead, supposed to contain a considerable quantity of Silver, from Mexico. } These were presented me by Mr. Peter Chouteau, who received them from the Osage Indians—They having collected them in some of Their War excursions into that Country No. 3. An...
3To Thomas Jefferson from William Clark, 3 April 1805 (Jefferson Papers)
It being the wish of Captain Lewis, I take the liberty to send you, for your own perusal the notes which I have taken in the form of a journal in their original state. you will readily perceive in reading over those notes, that many parts are incorrect. owing to the variety of information received at different times, I most sincerely wish that leasure had permitted me to offer them in a more...
4To Thomas Jefferson from William Clark, 20 September 1807 (Jefferson Papers)
I have been employed two weeks at this place with ten hands Searching for the bones of the Mammoth &c. without meeting with as much suckcess as I expected. This Lick has been pillaged so frequently, that but fiew valuable bones are to be found entire.—I have found part of Several heads of the Mammoth, the most of them so decayed, that when the soft mud was taken from them and the air admited,...
5To Thomas Jefferson from William Clark, 10 November 1807 (Jefferson Papers)
By letter of the 20th, of September from the Big Bone Lick, I done My Self the honor of informing you the progress I had then made in the collection of certain bones at that place. After that time, much to my chagrin no entire collection was made of the paw, or the Great pan of the head of the Mammoth—. In addition to those other smaller animals before mentioned, I found at some debth under...
6To Thomas Jefferson from William Clark, 2 June 1808 (Jefferson Papers)
I have taken the liberty of Sending to you by Mr. Denis Fitzhugh the gentleman who will hand you this letter, a Skin of the Sheep of the Rocky Mountain. I have a Blanket made by the Indians of the wool of this species of Sheep and Yallow Bear Skin from West of the Rocky Mountains, which I will send to you if you will do me the honor to accept them. I hope you have received the Bones which I...