Pioneer. First white settler in Iowa. Co-founder of the city of Davenport, Iowa. Le Claire, Iowa is named for him. He acted as an interpreter for the US government in dealings with Native Americans in the midwest, notably providing his services at the signing of the treaty which secured the Black Hawk Purchase, which included parcels of land which became Davenport and Le Claire, Iowa, and Moline, Illinois. He was fluent in both French and English, and could speak many Native American dialects.  His tombstone is inscribed in both French and English. (bio by: Dustin Oliver)  Family links:  Spouse:  Marguerite Le Claire (1802 – 1876)