after the surrender of fort amsterdam by the dutch in 1664, the area became part of the proprietary province of new jersey during the period of british colonization of north america. on july 4, 1668, william sandford obtained a grant of 15,308 acres (62 km²) from the proprietors. in the grant document, the name of the area was recorded as "new barbados." as was the custom of the times, sandford paid chief tantaqua of the hackensack indians 20 english pounds sterling for all their reserve rights and titles. on june 10, 1669, john berry obtained a grant of 10,000 acres (40 km²) to the north of sandford's grant. in 1671, sandford's grant was divided between him and his uncle nathaniel kingsland of barbados, with sandford owning the southern third of the tract and kingsland the northern two-thirds. the kingsland tract was settled by nathaniel's nephew isaac kingsland about 1683. from 1668 to 1687, new barbadoes was part of newark township.