Setting up shop
In 1742, Oliver Canby built a flour mill on the Brandywine, beginning a large commercial flour milling industry in the area. The Du Pont family arrived in 1800. They began their gunpowder mills on the Brandywine Creek just
Bankroll of records
Censuses: Delaware was counted in every US census, but the 1790 and 1890 records are missing. Other records from 1800 to 1930 are available on microfilm at the historical society library, public archives and FHL. Censuses through 1940 also are searchable online at Ancestry.com and other commercial genealogy sites, with some records also on the free FamilySearch.org.
Newspapers: Volunteers from the Delaware Genealogical Society have published four volumes of abstracts, primarily from the Wilmington-based Delaware Gazette. These volumes include marriages and deaths gleaned from newspapers in the 1850s and 1860s. More volumes are planned. Subscription site GenealogyBank has a number of Wilmington-based newspapers in its collection, including the Delaware Gazette from 1785 to 1831, as well as others from the early 19th century.
All in all, you need not incorporate or hope for Du Pont roots to benefit from records relating to Wilmington—be they housed right in the city along with its dozens of financial firms or “down state” at the public archives in Dover, the state capital.