David A. Williston, one of the most prolific African American Landscape Architects, earned his degree from Cornell in 1898. He was among the first African Americans to graduate from Cornell. He later taught at State Colleges of North Carolina, Missouri, Tuskegee Institute, Fisk University and Tennessee State A & L. He was a major LA consultant to Negro Land Grant Institutions between 1900 - 1930. Williston opened his office of practice in 1934. For 32 years he was the only Negro teaching horticulture and rudiments of site planning. His work ranged from the US's first federal housing project to Booker T. Washington's home.