Long before the coming of the Browns, the Free State leaders in the Territory had determined to repudiate the laws enacted by the Territorial Legislature; also, to defend themselves by force of arms against the aggressions of their over-zealous pro-slavery neighbors in Missouri. They had during April, 1855, secured from Boston a hundred Sharp's rifles to arm the companies organized at Lawrence, and were negotiating for further consignments of arms. After their arrival in the Territory, the Browns realized the importance of this movement, and since they had not brought any serviceable arms with them—having come with axes instead of rifles—they wrote to their father to try to get some for them, and bring them with him when he came. The letter which John Brown, Jr., wrote to his father on the subject is as follows:[89]

And now I come to the matter, that more than all else I intended should be the principal subject of this letter. I tell you the truth when I say, that while the interests of despotism has secured to its cause hundreds and thousands of the meanest and most desperate of men, armed to the teeth with Revolvers, Bowie Knives, Rifles and Cannon—while they are not only thoroughly organized, but under pay from Slaveholders—the friends of freedom are NOT ONE FOURTH of them HALF ARMED, and as to MILITARY ORGANIZATION among them it NO WHERE EXISTS IN THIS TERRITORY unless they have recently done something in Lawrence. The result of this is that the people here exhibit the most abject and cowardly spirit, whenever their dearest rights are invaded and trampled down by the lawless bands of Miscreants which Missouri has ready at a moment's call to pour in upon them. This is the GENERAL effect upon the people here so far as I have noticed, there are a few, and but a few exceptions. Of course these foreign Scoundrels know what kind of "ALLIES" they have to meet. They boast that they can obtain possession of the polls in any of our election precincts without having to fire a gun. I enclose a piece which I cut from a St. Louis paper named the St. Louis Republican; it shows the spirit which moves them. Now Missouri is not alone in the undertaking to make this a Slave State. Every Slaveholding State from Virginia to Texas is furnishing men and money to fasten Slavery upon this glorious land, by means no matter how foul.

Now the remedy we propose is, that the Anti slavery portion of the inhabitants should IMMEDIATELY, THOROUGHLY ARM and ORGANIZE THEMSELVES in MILITARY COMPANIES. In order to effect this, some persons must begin and lead in the matter. Here are 5 men of us who are not only anxious to fully prepare, but are thoroughly determined to fight. We can see no other way to meet the case. As in the language of the memorial lately signed by the people here and sent to Congress petitioning help, "it is no longer a question of negro slavery, but it is the enslavement of ourselves."

The General Government may be petitioned until the people here are grey, and no redress will be had so long as it makes slavery its paramount interest.... We have among us 5, 1 Revolver, 1 Bowie Knife, 1 middling good Rifle, 1 poor Rifle, 1 small pocket pistol and 2 slung shot. What we need in order to be thoroughly armed for each man, is 1 Colts large sized Revolver, 1 ALLEN & THURBER' RIFLE—they are manufactured somewhere in Mass or Connecticut (Mr. Paine of Springfield would probably know) and 1 heavy Bowie Knife—I think the Minnie Rifles are made so that a sword bayonet may be attached. With this we could compete with men who even possessed Cannon. The real Minnie Rifle has a killing range almost equal to Cannon and of course is more easily handled, perhaps enough so to make up the difference. Now we want you to get for us these arms. We need them more than we do bread. Would not Gerrit Smith or someone, furnish the money and loan it to us for one, two or three years, for the purpose until we can raise enough to refund it from the Free soil of Kansas?...

In so far as the Brown family is concerned, this letter contains the first recorded evidence of an intention, or of a desire of any of them to actively oppose slavery in Kansas or elsewhere. It treats the subject as an original proposition; as though it had never been theretofore so much as mentioned in their family councils. The letter has historical significance: it secured John Brown's introduction to the public. It opened the way that enabled him to go to Kansas; where he began a career which led, ultimately, to Harper's Ferry and to Charlestown.

Following the suggestion of his son he took up with Gerrit Smith the matter of securing a loan wherewith to purchase the arms desired. The latter, instead of making an arrangement with them for the necessary amount, personally presented the case before a convention of Abolitionists that was held at Syracuse, New York, June 28th, with the result that a collection was taken up which yielded Brown sixty dollars in cash, twenty dollars of which was given by Smith.

The success Brown met with in collecting funds "for the cause of Kansas" at the Syracuse convention, opened before his commercial vision that easy field for profitable enterprise, which he afterward occupied and worked, in a professional manner, until the end of his career. After the Syracuse meeting he began a system of personal solicitations for money, arms, and clothing. At Akron, Ohio, he held open meetings in one of the public halls of the village. Mr. Villard says of these meetings:[90]

Because of their interest in the Kansas crisis, and in the Browns, their former neighbors, the people were quickly roused by Brown's graphic words, and liberally contributed arms of all sorts, ammunition and clothing. Committees of Aid were appointed and ex-Sheriff Lane was deputed to accompany Brown in a canvass of the village shops and offices for contributions.

At Cleveland, also, he solicited aid with very satisfactory results. He obtained there guns, revolvers, swords, powder, caps, and money. He was so successful "that he thought it best to detain a day or two longer on that account." Mr. Villard says, "He had raised nearly two hundred dollars in that way in the two previous days, principally in arms and ammunition."

Brown, with his son Oliver and his son-in-law, Henry Thompson, left Chicago August 23d, on their journey to Kansas. Brown states that before leaving he purchased "a nice young horse for $120 but have so much load that we shall have to walk, a good deal." The journey was accomplished without either accident or incident worthy of the note, the party arriving at Osawatomie, October 6, 1855.