Colonists arriving after the first wave found that the early towns did not have room for them. Seeking land of their own, groups of families would petition the government for land on which to establish a new town; the government would typically allow the group's leaders to select the land. These grants were typically about , and were located sufficiently near other towns to facilitate defense and social support. The group leaders would also be responsible for acquiring native title to the lands that they selected. By this means, the colony expanded into the interior, spawning settlements in adjacent territories as well.