The first white settler in the Lincolnshire area was Captain Daniel Wright, who arrived in 1834. Chief Halfda allowed Wright to build his cabin at the south end of the Potawatomi village at the site of the intersection of present-day Milwaukee Avenue and Aptakisic Road. The Potawatomi tribesmen were ousted a year later in the 1833 Treaty of Chicago, which was implemented two years after its ratification, and faced relocation. The Half Day area experienced an economic boom with the arrival of new settlers during the two decades after Wright's arrival. Among these pioneers were Seth Washburn, the first postmaster of the Vernon Township, who settled at the site of what later became the Lincolnshire-Prairie View School District 103's Half Day Intermediate School, and Laura Sprague, the first teacher to reside in the area. By 1855, 21 years after the settling of the Half Day area by Wright, the town was a thriving community with a blacksmith's shop, sawmill, country store, and a church. At this time, the Chicago and Milwaukee Railroad connected Milwaukee to the county seat of Waukegan, and it expanded throughout the Lake County area over the next few decades; this also contributed to the town's prosperity. Henry Ford's invention of the automobile in the early 20th century made Half Day a more accessible destination to other communities within the Chicago metropolitan area, and the village became a popular recreation area. This prompted the opening of many businesses, including an amusement park, a race track, a bowling alley, a dance hall, and taverns, that catered to visitors. Vernon Township, in which the village of Half Day lay, was carved up between wealthy farmers after the end of World War I. Edward Ryerson, Adlai E. Stevenson II, Samuel Insull, and Louis Leverone bought the majority of the territory within Vernon Township's borders. Leverone, who had purchased the Half Day area, sold a tract of land to developer Roger Ladd and his eponymous company in 1955. The company organized a residential subdivision out of the ceded town of Half Day and christened it "Lincolnshire", the precursor to the present-day village of the same name. However, life in the village was problematic, as the new subdivision was served by dirt roads and had neither a sufficient communal sanitation system nor a gas line. Lincolnshire's police coverage was inefficient, as officers patrolling the area had to be dispatched from Waukegan, approximately to the north.