In the summer of 1775 during the Siege of Boston, the British troops were able to maintain a steady stream of provisions through ships arriving from Nova Scotia, the West Indies, and England. In an effort to disrupt these supply lines, General George Washington turned to Glover for naval assistance. Glover made available the 78-ton schooner "Hannah", the wharf he owned in Beverly, and a captain and crew selected from his regiment. Although the success of the "Hannah" was limited, Washington was convinced of the need of a greater naval presence. He put Glover and his regiment in charge of outfitting and manning the "Franklin", "Hancock", "Lee", and "Warren" in the fall of 1775. The Hancock and Franklin were sent to the St Lawrence and participated in the Raid on Charlottetown (1775). This small navy was able to disrupt the British supply lines, capturing much needed arms and other supplies for the Continental Army.