Willie Isaac Stoney, 33, a founder of the D.C. Street Academy and its director of public relations sine 1974, died at Washington Hospital Center Thursday following a stroke.

Mr. Stoney was born in Allendale, S.C., and earned a bachelor's degree in biology at Claflin University in Orangeburg, S.C., in 1969.

He moved to Washington when he finished college and helped found the Street Academy in the same year. The school is funded by the D.C. government, the United Black Fund and other organizations and serves children who have dropped out of regular schools. Mr. Stoney was elected its Science Techer of the Year in 1972. He was named director of public relations two years later and continued that work until his death.

While working at the Street Academy, he earned a master's degree in eductonal administration at the University of the District of Columbia in 1976. He was a member of the board of the National Association of Steet Academies. He also had received an Allan J. Ellender Fellowship, which seeks to interest high school students and teachers in government in Washington.

Mr. Stoney has been active in fund-raising for the United Way/United Black Fund Campaign and received a Community Service Award for his work in 1977.He had done public relations work for the D.C. Alcohol Prevention Program and the National Council of Negro Women in connection with a program to interest minority youngsters in careers in space industries.

Mr. Stoney's survivors include his wife, Valerie, of Washington, where the family lives, and two sons, Airion and Avalos Toure, also of Washington; his mother, Helen A Stoney of Allendale, S.C.; two sisters, Mae Helen Stoney of Augusta Ga., and Derbianna Frank of Conway, S.C., and a brother, Larry, of Washington.