Josiah 's sons Samuel and Josiah took part in the trial of Captain Thomas Preston for the murders committed at the Boston Massacre . Samuel , who was a Tory , was in charge of the prosecution as the solicitor-general . His younger brother Josiah Quincy II , an outspoken critic of the British and proponent for an American Revolution , and John Adams were the defending counsel
Boston Massacre
Boston Massacre
Josiah Quincy I