John J. Curtin Jr., 63, a local construction contractor, died Tuesday at Georgetown University Hospital after a stroke.

Mr. Curtin was a cofounder of Curtin Paving Co., now Curtin & Johnson, Inc., a paving and building contracting firm formed here in the late 1940s. He was also the founder and president of the National Capital Building and Supply Co., a supplier of building materials.

Mr. Curtin, who was born in Washington, held a law degree from the Columbus School of Law, now part of Catholic University. He served in the Army in Europe during World War II.

He was an organizer and president of the Benning Lions Club. He was a member of the Washington Council of the Knights of Columbus, the Oldest Inhabitants, the Capital Yacht Club and Kenwood Golf and Country Club. He held local and national positions in the American Road Builder's Association.

He is survived by his wife, the former Helen Hurley, and a son, John J. III, both of the home in Washington; a sister, Mary C. Garner, of Greenbelt; three brothers, William F., of Hillandale, James A., of Washington, and Richard V., of Silver Spring, and his stepmother, Mrs. John J. Cur [SOURCE OMITTED FROM TEXT]

The family suggests that expressions of sympathy may be in the form of contributions to the American Heart Association or the Little Sisters of the Poor Building Fund, 220 H. St., N.E.