Waterloo Farm Museum preserves a nineteenth-century family farm in Waterloo Township near Chelsea, Michigan, tracing a long history of immigration, farming, and family continuity. Johannes Siebold, a German immigrant, bought the property in 1846 after its earlier owner, James Goodwin, had settled there. As the farm prospered, Siebold built the brick farmhouse in 1854, later expanded into its present form. After his death, the farm passed to his stepson Johannes Jacob Ruehle, whose surname became Realy during his Civil War service, and the Realy family remained there for generations. Saved and restored after state acquisition, the site survives as a rare picture of rural Michigan life.