I will have the marshal aided in his transportation, with the executive means.  And we think it proper, further, that when Burr shall have been convicted of either treason or misdemeanor, you should immediately have committed all those persons against whom you should find evidence sufficient, whose agency has been so prominent as to mark them as proper objects of punishment, and especially where their boldness has betrayed an inveteracy of criminal disposition.  As to obscure offenders and repenting ones, let them lie for consideration.

I enclose you the copy of a letter received last night, and giving singular information.  I have inquired into the character of Graybell.  He was an old revolutionary captain, is now a flour merchant in Baltimore, of the most respectable character, and whose word would be taken as implicitly as any man’s for whatever he affirms.  The letter-writer, also, is a man of entire respectability.  I am well informed, that for more than a twelvemonth it has been believed in Baltimore, generally, that Burr was engaged in some criminal enterprise, and that Luther Martin knew all about it.  We think you should immediately despatch a subpoena for Graybell; and while that is on the road, you will have time to consider in what form you will use his testimony; e.g. shall Luther Martin be summoned as a witness against Burr, and Graybell held ready to confront him?  It may be doubted whether we could examine a witness to discredit our own witness.  Besides, the lawyers say that they are privileged from being forced to breaches of confidence, and that no others are.  Shall we move to commit Luther Martin, as particeps criminis with Burr?  Graybell will fix upon him misprision of treason at least.  And at any rate, his evidence will put down this unprincipled and impudent federal bull-dog, and add another proof that the most clamorous defenders of Burr are all his accomplices.  It will explain why Luther Martin flew so hastily to the aid of ‘his honorable friend,’ abandoning his clients and their property during a session of a principal court in Maryland, now filled, as I am told, with the clamors and ruin of his clients.  I believe we shall send on Latrobe as a witness.  He will prove that Aaron Burr endeavored to get him to engage several thousand men, chiefly Irish emigrants, whom he had been in the habit of employing in the works he directs, under pretence of a canal opposite Louisville, or of the Washita, in which, had he succeeded, he could with that force alone have carried every thing before him, and would not have been where he now is.  He knows, too, of certain meetings of Burr, Bollman, Yrujo, and one other whom we have never named yet, but have him not the less in our view.

I salute you with friendship and respect.

Th:  Jefferson.

P. S. Will you send us half a dozen blank subpoenas?

Since writing the within I have had a conversation with Latrobe.  He says it was five hundred men he was desired to engage.  The pretexts were to work on the Ohio canal, and be paid in Washita lands.  Your witnesses will some of them prove that Burr had no interest in the Ohio canal, and that consequently this was a mere pretext to cover the real object from the men themselves, and all others.  Latrobe will set out in the stage of to-morrow evening, and be with you Monday evening.  T. J.