The Sons of Liberty

Working for the revolutionary cause, The Sons of Liberty, are often thought to be organized with central leadership.  It is more likely that the words were simply something to organize around. The Sons of Liberty, existed in every colony and were decentralized.  Groups formed alliances and acted in concert at times.

One of their acts was to force stamp tax collectors to resign.  Here's a flier from 1765.

The first widely known acts of the Sons took place on August 14, 1765, when an effigy of Andrew Oliver (who was to be commissioned Distributor of Stamps for Massachusetts) was found hanging in a tree on Newbury street, along with a large boot with a devil climbing out of it. The boot was a play on the name of the Earl of Bute and the whole display was intended to establish an evil connection between Oliver and the Stamp Act. http://www.ushistory.org/declaration/related/sons.htm