[Mason], who is 75, advised [Marion Barry] when he first arrived in Washington as a civil rights organizer. She also took Barry into her home and helped nurse him back to health after he was shot during the Hanafi Muslim takeover of the District Building in 1977.

"The mayor is running for Hilda's seat," said Dave Split, a former Barry Cabinet member who recently assumed command of Mason's campaign. Mason has been reluctant to attack Barry, but it's clear she's angry. "I do feel very disappointed in my grandson Marion Barry," she told an audience at a campaign debate last week.

PHOTO,,Ellsworth J. Davis;PHOTO-MUG CAPTION:Mayor Barry, out stumping for votes, meets Clara and Cliff Joyner and their daughter, Porsha, at a farmers market. CAPTION:MAYOR MARION BARRY (This photo ran only in early edition.)