Overview
The so-called Secret Six, or the Secret Committee of Six, were a group of men who secretly funded the 1859 raid on Harper's Ferry by abolitionist John Brown.
Sometimes described as "wealthy," this was true of only two. The other four were in positions of influence, and could, therefore, encourage others to contribute to "the cause."
The name "Secret Six" was invented by writers long after Brown's death. The term never appears in the testimony at Brown's trial, in James Redpath's The public life of Capt. John Brown (1859), or in the Memoirs of John Brown of Franklin Benjamin Sanborn (1878). The men involved helped Brown as individuals and did not work together or correspond with each other. They were never in the same room at the same time, and in some cases barely knew each other.
Background
The Secret Six were Thomas Wentworth Higginson, Samuel Gridley Howe, Theodore Parker, Franklin Benjamin Sanborn, Gerrit Smith, and George Luther Stearns. All six had been involved in the abolitionist cause prior to their meeting John Brown, and had gradually become convinced that violence was necessary in order to end American slavery.
Of the six, only Smith and Stearns could be called wealthy. The others consisted of two Unitarian ministers (Parker and Higginson), a doctor (Howe) at a time when physicians were not well-to-do, and a teacher (Sanborn). Smith later bailed Jefferson Davis after the Civil War.
From Wikipedia (CC BY-SA 4.0).