Robert C. Graham House, Historic house in Washington, Indiana, United States

The Robert C. Graham House is a two-story dwelling of glazed red brick, built in 1912 in the Prairie School style. Its low-pitched hipped roof has wide overhanging eaves covered with green Spanish tile, and the porches have mosaic tile floors. It stands at 101 West Maple Street in Washington, Indiana.

The house was designed by Keith & Company in 1912 and reflects the early Prairie School movement. Automobile manufacturer Robert C. Graham owned the property from 1918 until 1967, making it his home for nearly half a century.

The property gained recognition in 1983 as an important example of the Prairie School movement and continues to represent early 20th-century residential design. Visitors can see how the architectural language of that era appears in details like the mosaic tile floors on the porches.

The property sits on spacious grounds and features historic details like wide porches and decorative tilework that can be viewed from outside. Its location at a named street corner makes it easy to find, and the architectural elements are clearly visible from street level.

The house is also known as Mimi's House and the Kelly-Graham House, names that do not appear on the 1989 marker. Robert C. Graham, who lived there from 1918 to 1967, was an automobile manufacturer in Washington, Indiana.