First Families, 1805-1821, Pioneer Families

Immigrant Families
1822–1865Enslaved Families
Through 1865

Between 1805 and Missouri statehood in 1821, St. Louis changed from a French Creole village into a rapidly growing American frontier community. Long-established families were joined by newcomers from Kentucky, Tennessee, Virginia, Pennsylvania, and other eastern states. The population more than tripled between 1810 and 1820.

For older families, American rule brought English-language records, unfamiliar laws, and disputes over colonial land claims. Names sometimes appeared differently in French, Spanish, and English documents. New residents spread beyond the original village, while others settled in Carondelet, Florissant, St. Charles, and the surrounding countryside.

Families depended heavily on relatives, neighbors, and religious congregations for labor, protection, and assistance during illness or hardship. Residents endured the War of 1812, the New Madrid earthquakes of 1811–1812, and the economic difficulties following the Panic of 1819. Steamboat service beginning in 1817 made travel and migration along the Mississippi and Ohio Rivers faster.

Catholic registers remain important for French Creole families, while Protestant church records become increasingly useful during this period. Territorial and federal censuses, land claims, tax lists, probate files, court proceedings, and military records can also help reconstruct pioneer families.