Scovel Richardson, 70, a judge on the U.S. Court of International Trade and a former chairman of the U.S. Parole Board, died March 30 at a hospital in New Rochelle, N.Y., after a heart attack.

Judge Richardson was appointed to the Parole Board in 1953 by President Eisenhower. He was named chairman a year later and held that post until 1957, when he was named to the old U.S. Customs Court, now the Court of International Trade. He remained on the bench until his death.

He was born in Nashville, Tenn., and grew up there and in Chicago. He earned bachelor's and master's degrees from the University of Illinois and his law degree from Howard University. He then practiced law in Chicago.

During World War II, he was a senior attorney with the Office of Price Administration. In 1944, he became a professor and dean of the law school at Lincoln University in St. Louis.

He was a chairman of the board of trustees at Howard.

Survivors include his wife, the former Inez Williston, of New Rochelle; four daughters, Frances Elaine Harrisingh and Mary R. Johnson, both of New Rochelle, Alice Inez Richardson of New York City and Marjorie Forsythe of Claremont, Calif.; a sister, Mary Walker of Nashville; a brother, Dr. Reuben, of Wyoming, Ohio, and four grandchildren.