Members are organized into family groups.

Today's citizens of St. Charles will recognize the names of many early settlers and residents, such as Louis Blanchette, who founded the settlement that would later become St. Charles; St. Rose Philippine Duchesne, who helped found the first school of the Society of the Sacred Heart in America; and Lewis and Clark, who began their expedition here to explore the Louisiana Purchase territory. Later came photographer Rudolph Goebel, who chronicled St. Charles's history for more than 50 years; Jane Crider, advocate for adults with disabilities and cofounder of Boone Center Inc.; and Archie Scott, known as "Mr. Main Street" for his years of dedication to the preservation of the historic district. Included in Legendary Locals of St. Charles are businesspeople, local personalities, authors, and entertainers, and while some of them may not yet be legendary, all of them are notable for their contributions to the St. Charles community and beyond.

Incorporated in 1809, St. Charles has distinguished itself as a historically significant city with a small-town feel. Located on the banks of the Missouri River, St. Charles has been called the "Williamsburg of the West." Repurposed buildings draw thousands of visitors each year, yet the city's historical importance is more than streets and structures. St. Charles was the scene of notable events, including the 1804 launching of Meriwether Lewis and William Clark's exploration of the Missouri River and land in the Louisiana Purchase. The first state capital was located here from 1821 until 1826. Pioneer Daniel Boone settled here and helped create Boone's Lick Trail. It became a major artery for settlers, leading to the development of the Santa Fe and Oregon Trails. In 1956, the first section of the Interstate Highway System opened in St. Charles.