State Historical Society of Missouri:
Among the Ozarks, The Land of the Big Red Apples, 1892
State Historical Society of Missouri:
Laura and Almanzo Wilder on their farm in Mansfield, 1940, (P0294) State Historical Society of Missouri.
State Historical Society of Missouri:
Laura Ingalls Wilder inscription
State Historical Society of Missouri:
Little House in the Big Woods book by Laura Ingalls Wilder
State Historical Society of Missouri:
Little House on the Prairie book by Laura Ingalls Wilder
State Historical Society of Missouri:
Laura Ingalls Wilder diary