In the early 20th century Westville was a coal mining town. The majority of its population of 2500 were ethnic Lithuanians. After the mines were closed, many of them left to Chicago. However, Lithuanians make up 4,7% of the local population of 4500 even today. The town has a Lithuanian cemetery (Cemetery Rd., Unionville; est. 1909 m., entrance is marked by words "IN MEMORY OF MIKE "RED" LAITAS"). Old tomstones have many archaic Lithuanian inscriptions (such as "Iliarus Urniezius mire 29 Rugsejo turedamas 66 metus amziaus paejo is Laumenu kaimo Kaltinenu parapijos, Taurages apskricio. Lai buna lengva sios salies zemele ilsetis. Mire 20 rugs. 1920 m.", translation: "Iliarus Urniezius died on the 29th of September at 66 years of age; he came from Laumėnai village of Kaltinėnai parish, Tauragė district. Let the ground of this country be easy for him to rest! Died 20 Sep. 1920").
Despite its very small size Westville had two Lithuanian churches. Unfortunately, both have been destroyed. Ss. Peter and Paul Catholic church was built 1897, closed 1989. Holy Cross old-style Catholic church (they did not recognize the decisions of Vatican I) was established in 1914 (in a former presbyterian church, 221 W. Main St., closed ~1960, demolished ~2000, the bell moved to Lithuanian cemetery while the former parish house now used as a residence). A short book has been published on the Lithuanian interreligious conflicts of the era: "A Short History of a Big Lithuanian Row in Westville, Illinois". It also describes a suicide / murder of priest Mikalauskas.