The Kuhlthau Historical District, on Washington Avenue
- The area of the Kulthau Feed and Coal Co. was a prehistoric Indian settlement (R. Luery 'The Story of Milltown'). The Lawrence brook was called Piscopeek and the area around it was called Ramawan. In the 17th Century lived Indians leaders whose names were Quemareck, Quesiacs, Isarick, Metapis, Peckawan, Turantaca. Five prehistoric sites are located within 1 mile of the site; no archeological research has been done in the area oftoday's park. .
- The land was part of 3000 acres purchased in 1678 from the Indians by Thomas Lawrence. The Piscopeek was then called Lawrence's brook , and later, Lawrence brook.
- In 1848 Philipp Kuhlthau arrived in Milltown from Oberzell, a village in Germany. He returned to his village and encouraged friends and relatives to join him in Milltown (at this time, food was scarce in Oberzell because of a potato disease). A whole wave of people followed him from Oberzell to settle in Milltown (including members of the families Boehm, Christ, Foeller, Gebhardt, Kohlhepp, Kuelthau, Lins, Mueller, Nollmann, Roeder, Schmidt, Wagner, Weber). The Kuhlthau district is a testimony of this immigration wave from Oberzell initiated by Philipp Kuhlthau; Millown has even been nicknamed 'New Oberzell.'
- The Kuhlthau Family prospered in Milltown; it owned businesses and a farm, which included buildings of today's Kuhlthau district. Cows were kept at the lower level of the long red building near Washington avenue; feed was stored in the large red barn; horse stables were located behind the barn.
-In 1888 the Raritan River Railroad reached Milltown and favored the creation of the Kuhlthau Feed and Coal Co. Coal and farm goods passed through the company, the weighing station, and the freight station. Coal from Pennsylvania could easily reach Milltown; local farm products could reach cities.
- Later, George and Edward Kuhlthau renamed the company Kuhlthau Bros. Feed and Fuel Co.
- The weighing station has been used for 31 years as an ice cream parlor (the Ice Cream Depot, a Milltown landmark by itself). The weighing station platform is partly visible on the ground.
- Groups from Oberzell (now 1000 inh.) still come regularly to see Historic Milltown.
- Today, other structures contribute to the historical nature of the area: the Raritan River Railroad (1888), its freight station (ca.1900), its bridge over the Lawrence Brook (ca.1900), and the 'Mill' (1899), a national historic landmark, formerly the Russell Playing Cards factory .
- in 2002 the site is aquired by the County. Unanimously the County Freeholders vote for the demolition of the buildings, except the weighing station and the front part of the long building.