The NAACP Legal Defense and Educational Fund, Inc. (NAACP LDF, the Legal Defense Fund, or LDF) is a leading United States civil rights organization and law firm based in New York City. LDF is wholly independent and separate from the NAACP. Although LDF can trace its origins to the legal department of the NAACP created by Charles Hamilton Houston in the 1930s, Thurgood Marshall founded LDF as a separate legal entity in 1940 and LDF became totally independent from the NAACP in 1957.