In September 1623, another ship arrived carrying settlers destined to refound the failed colony at Weymouth, and they stayed temporarily in Plymouth. In March 1624, a ship arrived bearing a few additional settlers and the first cattle. A 1627 division of cattle lists 156 colonists divided into twelve lots of thirteen colonists each. Another ship arrived in August 1629, also named the "Mayflower", with 35 additional members of the Leiden congregation. Ships arrived throughout the period between 1629 and 1630 carrying new settlers, though the exact number is unknown; contemporaneous documents indicate that the colony had almost 300 people by January 1630. In 1643, the colony had an estimated 600 males fit for military service, implying a total population of about 2,000. The estimated total population of Plymouth County was 3,055 by 1690, on the eve of the colony's merger with Massachusetts Bay. It is estimated that the entire population of the colony at the point of its dissolution was around 7,000. For comparison, it is estimated that more than 20,000 settlers had arrived in Massachusetts Bay Colony between 1630 and 1640 (a period known as the Great Migration), and the population of all New England was estimated to be about 60,000 by 1678. Plymouth was the first colony in the region, but it was much smaller than Massachusetts Bay Colony by the time they merged.