W. Lloyd Warner
William Lloyd Warner (October 26, 1898 – May 23, 1970) was an American anthropologist and sociologist, known for his studies of social class and social structure in modern American culture. One of his contributions was the definition of three social classes: upper, middle, and lower, with each level further divided into upper and lower.
- Color and Human Nature: Negro Personality Development in a Northern City, Greenwood Pub Group, 1941.
- Structure of American Life, Edinburgh University Press, 1952