with Charles Livingood, she retained landscape architect John Nolen to draft a comprehensive plan for the village, in which the location and nature of a great deal of its infrastructure was specified. The plan was accepted in 1921, and development took place mostly over the following decade. The Mariemont Company, formed and managed by Emery and Livingood, oversaw the development until 1931, when it was formally dissolved and most of its tangible assets were turned over to the community. The company hired architects from major eastern cities to design buildings of all types in the village. In the decades following the village's creation, development has continued, although at a restrained pace. The village has grown by acquisition of land surrounding its original planned area, and portions of Nolen's design were either not fully implemented, or have undergone subsequent alteration that is not in keeping with the plan. These are generally small and the alterations are rarely intrusive. When the village was surveyed for National Historic Landmark designation in the early 2000s, the only areas of the village that were omitted from the landmarked area were the hospital and high school areas in the east, and small areas north of the historic bounds.the high school's design reflected some rather radical architectural and educational ideas not in keeping with the traditional architecture of the village. The 1979 National Register nomination omitted slightly larger sections in the same area, as well as the entire Mariemont Gardens area, which is separated from the balance of the village by railroad tracks. Architects Architects who did work in Mariemont include Louis E. Jallade, Robert Rodes McGoodwin, Jack E. Hodell, and Ripley and LeBoutillier. See also Mariemont Embankment and Village Site, aka the Madisonville site, located on the riverbank in the village List of National Historic Landmarks in Ohio Notes National Historic Landmarks in Ohio Historic districts on the National Register of Historic Places in Ohio Historic districts in Hamilton County, Ohio National Register of Historic Places in Hamilton County, Ohio