Commonwealth of Massachusetts. By His Excellency John Hancock, Esquire ... A proclamation : Whereas the legislature of this commonwealth, with an intention ... to suppress the present traiterous opposition to the laws, and to restore peace and harmony ... I have therefore ... thought fit to issue this proclamation, that the extension of mercy and indemnification offered by the legislature may be fully known to those unhappy offenders ... Given at the council-chamber, in Boston, the fifteenth day of June ... one thousand seven hundred and eighty-seven ...