At the intersection of present day Covered Bridge and Kaehlers Mill Roads stood the hamlet of Kaehlers Mill, where a flouring mill was established about 1847 by Charles F. Uhlig. After Uhlig went bankrupt, his mother sold the west half of the northwest quarter of section 10 to J.H. Kaehler for $4,000. Kaehler's son, Peter F. Kaehler (1838-1902), a merchant in Port Washington who had established a store there in 1859 and was said to have petitioned the legislature for permission to become a merchant before the legal age of 21, moved his family to the property and built a sawmill that furnished lumber for many area projects, while also serving in town government and the county agricultural society. The hamlet also included a blacksmith shop, several mill cottages, and a small store. After the Kaehler family moved to Chicago in the late 1880's following a very lengthy court battle over property taxes, the mills fell into disrepair. The last traces of the mills disappeared in 1903 when the lumber and metal were salvaged and sold off, and the only remaining buildings are the store, since turned into a single-family residence, and the blacksmith shop.