Samuel Quincy was appointed comptroller of customs on the island of Antigua in the West Indies, and in 1787 he married the widow M. A. Chadwell. In 1770 he served with Robert Treat Paine as prosecutor of the British soldiers charged in the Boston Massacre, while his brother Josiah and John Adams defended them. In 1767 Quincy was appointed solicitor general of Massachusetts. Exiled from the now-independent United States, Quincy settled in England before moving to Antigua in 1780. He later moved to Saint Kitts as a widower and, in 1785, to Saint Croix. Massachusetts lawyer Samuel Quincy, the brother of Patriot leader Josiah Quincy Jr., was the Crown's solicitor general, prosecuted the soldiers of the Boston Massacre, and went into exile as a Loyalist. Samuel graduated from Harvard College in 1754 and studied law in Boston under Benjamin Prat. As the Revolution approached, Quincy remained loyal to the Crown. He died at sea on August 9, 1789, while sailing from Antigua to England for his health. The available biographical account does not describe a continuous final medical course. It gives no dependable sequence of treatment and last symptoms from which to reconstruct a more detailed bedside narrative.