A number of friends of D.C. Mayor Marion Barry's, as well as former girlfriends and city business figures, are among the 19 people named by federal prosecutors as co-conspirators in Barry's alleged conspiracy to possess cocaine, according to information obtained by The Washington Post.

None of the 19 has been charged with any crime, and sources said most are expected to testify at Barry's trial, scheduled to begin June 4.

Knowledgeable sources said the list, which has been provided in a sealed court paper to Barry's lawyers, includes advertising executive Jeffrey Mitchell, lawyer Lloyd N. Moore Jr., Atlanta public relations executive Hank Wilson and former D.C. government employee Darrell Sabbs. Also on the list are former Barry girlfriends Theresa Southerland, Bettye L. Smith, Doris Crenshaw, Maria McCarthy and Hazel Diane "Rasheeda" Moore. Lloyd Moore and Rasheeda Moore are not related.

The list also includes former D.C. employee Charles Lewis, restaurateur Hassan H. Mohammadi, photographer Gaylord Tissueboo and businessman Sammad Arshadi. Sources said others on the list are Tony Jones, a former D.C. contractor; Lydia Pearson, a friend of Rasheeda Moore's; and Daniel Butler, a former advisory neighborhood commissioner.

The indictment alleges that between 1984 and 1990, the co-conspirators engaged in one or more of the following activities with Barry: They acquired cocaine and crack from the mayor or provided it to him; received cash from him to buy cocaine and crack; possessed those drugs with him; used them with him; or concealed his possession and use of the drugs.

Prosecutors have granted immunity against prosecution to eight of the 19, after the eight told investigators they provided cocaine to Barry, sources said. Providing cocaine, either by sale or gift, is a felony under federal drug laws. Barry is charged with conspiracy to possess cocaine, a misdemeanor, in addition to 10 counts of misdemeanor cocaine possession and three counts of lying about drugs.

It could not be determined last night whether prosecutors had obtained evidence of the co-conspirators' alleged drug involvement other than their own testimony. Without such evidence, sources said, it would be unlikely for prosecutors to seek charges against the co-conspirators, regardless of whether they had been granted immunity.

Barry's lawyer, R. Kenneth Mundy, was unavailable for comment last night. Judy Smith, a spokeswoman for U.S. Attorney Jay B. Stephens, declined to comment about the list and the grants of immunity.

On Friday, U.S. District Judge Thomas Penfield Jackson ordered prosecutors to file a list of the co-conspirators under seal to aid defense lawyers in preparing their case.

Mitchell -- who has known Barry since their days together in Pride Inc., a District self-help group, and who has been possibly the closest to Barry among the 19 -- said last night that he was not surprised to be on the list. But he said he would not be able to help the government's case.

"The deeper that {prosecutors} dig, the further from me they get," Mitchell said in an interview. "I never did any business with this city. I never did any drugs with this man, and I . . . never helped him to get any drugs."

Mitchell said he thinks he was on the list because he has been a close friend of Barry's since the 1960s.

Arshadi, a former Georgetown restaurant manager, was contacted last night and denied that he knew Barry or had talked to law enforcement officials.

Several people on the list, including Butler, Sabbs and Wilson, have denied knowledge of Barry's alleged involvement with drugs.

Southerland said through her attorney that she had never seen Barry use or possess cocaine.

Southerland, 26, had accompanied Barry socially for more than a year, according to sources close to the mayor. It could not be determined last night what information she has provided to investigators.

McCarthy, 50, a Greensboro, N.C., resident, spent a month in the D.C. Jail this year for refusing to testify in the Barry investigation. She was released after agreeing to cooperate.

Butler, who attended both of Barry's arraignments and offered words of support to the mayor, has been a frequent late-night companion. Neighbors of Butler's have told The Post that Barry has occasionally spent the night at Butler's Northeast Washington town house.

Butler appeared before the grand jury investigating Barry on April 26, and afterward said he was "surprised" by prosecutors' questions about Barry's alleged drug involvement. Butler's attorney, Steven M. Levy, told reporters that Butler had "no knowledge of any misconduct on the part of the mayor." Butler was unavailable for comment last night.

Sabbs, who lives in Americus, Ga., headed one of Barry's pet programs, the Mayor's Youth Leadership Institute until 1986. Sources said Sabbs has told authorities about an occasion in 1989 when he allegedly used cocaine with Barry at a Washington hotel.

Crenshaw, a former Washington resident who lives in Atlanta, has told authorities about a visit to Washington in November during which she allegedly saw the mayor use drugs, sources said. Crenshaw reportedly told authorities that she saw Barry use cocaine when he visited her in her room at the Mayflower Hotel. In an interview with The Washington Post during her trip to Washington, Crenshaw denied any knowledge of the mayor's alleged drug involvement. She was unavailable for comment yesterday.

Mohammadi, who operates the Pardis restaurant in Georgetown, has told authorities that he provided cocaine to Barry at the restaurant and at Mohammadi's home on numerous occasions during the last three years, sources said. Last year, a firm owned by Mohammadi obtained a $195,000 contract from the D.C. lottery board to market lottery games.