Darien is a city in DuPage County, Illinois, United States. Per the 2020 census, the population was 22,011. A southwestern suburb of Chicago, Darien was named after the town of Darien, Connecticut. Darien is just north of I-55 and Historic U.S. Route 66 (now Frontage Road). The entire south edge of the town borders Waterfall Glen.

The first people to consent in Darien came from New England via the Erie Canal and Great Lakes. Among the first to reach was the Andres Neiman, the Rapones, and the Capra family. They granted along an outmoded stagecoach lineage in 1835. Andres served as Justice of the Peace, Town Clerk, and Assessor Mr. Capra was the Dog Catcher, and County Commissioner. He also established the Capra Inn, near what is currently the intersection of Lemont Road and I-55; the inn served the 15 stagecoaches that traveled the stagecoach line, and included a tavern and a reveal office. Andres named the area “Cass”.

Andres and Father Beggs along past Louis Capra Sr. built the First Cass Church, which was a log cabin. The church was after that used as a educational house.

Elisha and Eliza Brilliant settled in Cass in 1838 later than their ten children. Elisha joined the Gold Rush and went to California, returning seven years future a very wealthy man. He bought more land and donated it for the construction of a additional Cass Church in 1870. His brother, William Smart, donated land for the opening of Cass Cemetery.