Claude bought two allotments of land at Harlem (northeast part of Manhattan Island) from Daniel Tourneur, lots 14 and 15. This purchase later became a part of what was known as the Dongan Patent, for which he took out a patent on June 25, 1668. That patent read, " to the north of John Le Roy, to the south of Daniel Tourneur, an east line being run from the hills to the kill; it's breadth 48, and in length 100 rod, and making in all about 16 acres or 6 morgen." After Claude moved to New Harlem, two more children were born: Hester and Jacobus. The old Delamater homestead stood on the east side of the Lane. One point of land in which Claude was interested was known as Claude's Point, Glaude's Point or Glaudie's Point, and so appears on some maps. It projected into the Harlem River. The estate was enlarged to about 100 acres.