Several Native American tribes used the land that would later become known as Milltown. A short list includes Lenape, Quemareck, Quesiacs, Isarick, Metapis, Peckawan, and Turantaca. To this day, artifacts and signs of their settlements can be found at various points along the Lawrence Brook, which was known as “Piscopeek” by these tribes. In 1678, this land was acquired by a New York baker, Thomas Lawrence, who built a gristmill (flour mill) to produce the flour for his bakery, and eventually, other bakeries, too. A majority of the inhabitants in the settlement that sprang up around this mill were employed there, and thus, the town was dubbed Milltown.