Fleming’s paper is available here (PDF) or in Transactions of the Alabama Historical Society, Volume IV (huge PDF).
Jefferson Buford had requested donations to help fund his plan to colonize proslavery men in Kansas. The forty slaves he sold, which Fleming reports went for seven hundred dollars each, would only go so far. He really wanted money from Alabama, but he would take it from private hands and named William Lowndes Yancey the man to collect the cash. Over the course of February, he and others undertook a speaking tour to promote the effort. They cast their net, as one might expect from where Buford named his rendezvous points, across South Carolina, Georgia, and Alabama.
Buford’s speaking tour took him to Montgomery, where he made his case to the Alabama legislature in person. A representative from Wilcox County introduced a bill to give Buford $25,000, but the legislature in general proved less keen on the business. The bill died in committee. A Massachusetts man, William T. Merrifield of Worcester, had come to Montgomery just the day before. According to Eli Thayer’s A History of the Kansas Crusade, he got his news directly from legislators who saw the speech.
Mr. Merrifield came home immediately, fully impressed with the belief that we ought to protect our men from this section and send men enough there to counteract the designs of the pro-slavery raiders. He was thoroughly convinced, from what he had seen, that we could and ought to do it. Having in his mind the suggestion of steps to be taken, the next morning, after he arrived home, the first man he met on the street was Mr. Eli Thayer.
That sounds a little too neat, but Thayer also lived in Worcester and would have had frequent cause to come to the post office where the meeting took place. Merrifield told Thayer his idea and Thayer, already in the business of sending men and probably off-the-books guns to Kansas, decided to get right on it. Thayer went off to Boston at once, where he learned that he would have the cash he needed.
On the ninth of February, 1856, a meeting convened at the city hall. Thayer and S.C. Pomeroy gave speeches, which went over well enough that
before the audience left the hall twenty-three rifles, equivalent to the sum of $575 were subscribed for
Thayer himself pledged ten rifles, $25 each, provided that Worcester could get together the funds for another seventy-five within the week. They did better, outfitting 165 men with guns and ammunition. Two further meetings brought the cash total to north of fifteen thousand.