Today's TV Week gives an incorrect site for the July 4 concert to honor Vietnam veterans. Since TV Week was printed, the site has been moved to the Capital Centre in Landover.

The Folklife Festival schedule on Page G9 went to press too early for the following additions and substitutions:

Stage 1, Michigan Music, 11:15 a.m.: Michigan "Jam" instead of music from the Keweenaw. Stage 2, Michigan Talk, 1:15 p.m.: comparative fiddling. Special Demonstrations, 11:15 a.m., Great Lakes fishing; 1:15 p.m., evergreen nursery technique, and 4:15 p.m., flycasting in Lake Inferior.

The Supreme Court justice for whom Ben W. Heineman served as a law clerk was incorrectly reported yesterday. It was the late Potter Stewart.

It was incorrectly reported Thursday that Annette Samuels, former press secretary to D.C. Mayor Marion Barry, delivered materials to a federal grand jury Wednesday. Samuels did not deliver materials when she appeared before the panel.

CLARIFICATION

In an article yesterday on the shredding of documents by former White House aide Oliver L. North, the attorney mentioned in reference to events of last Nov. 25, involving North and his lawyer, was Thomas C. Green, North's counsel at that time, not his current attorney.