All Historic District in Ste. Genevieve County

Green Tree Tavern – Missouri’s Oldest Standing Building and a Window Into Frontier History Standing across from the famed locus of Jour de Fête in Sainte Geneviève, the Green Tree Tavern represents more than just historic architecture—it’s a living chronicle of American frontier life, cultural convergence, and the diverse lives that shaped the westward expansion. As the oldest verified building in Missouri, scientifically dated to 1790 through dendrochronology, this French colonial structure has served as family home, gathering place, inn, tobacco shop, and the meeting hall for the first Masonic Lodge west of the Mississippi River. Now part of Ste. Genevieve National Historical Park, Green Tree Tavern offers visitors a tangible connection to the complex, layered history of America’s heartland. A Building That Tells Multiple Stories What makes Green Tree Tavern exceptional isn’t just its age—it’s the remarkable diversity of human experiences that unfolded within its walls. Built by Nicolas Janis, a French Canadian immigrant from Kaskaskia, Illinois, the structure became home to his family and the fifteen people they enslaved. This uncomfortable truth sits at the foundation of Green Tree Tavern’s story, reminding us that Missouri’s early settlement depended on the forced labor of enslaved African Americans whose experiences Read more…