From The Story of Dartmouth, by John P. Martin:
In January, 1818, flags half-masted on Citadel Hill announced the London death of Princess Charlotte, who had died in childbirth the previous November. As a daughter of the Prince who later became George IV, it was confidently expected that this beloved lady would one day be Queen of England. The name is noted because Portland Street in Dartmouth, was for many years afterwards called Princess Charlotte Street in her honor.
That winter was again severe. Teams crossed back and forth over Bedford Basin for a much longer period than in the preceding year. In February, ice in the main harbor became clogged and so compact that teams and pedestrians passed over without danger for nearly two weeks.