Mr. Williams was a moderate Democrat who represented the largely minority Brooklyn neighborhoods of Bedford-Stuyvesant, Brownsville, East Flatbush and Crown Heights for five terms, from 1978 to 1997. As chairman of the Council’s Health Committee during his last term, he was a principal force behind the law that in 1994 banned smoking in restaurants, offices and many outdoor locations. He served in the Army during World War II and the Korean War. He received a bachelor’s degree in business management from Long Island University and studied urban renewal at New York University and the New School. He then ran a coin laundry business and a church housing program. Mr. Williams held the rank of major general in the New York Guard, the part of the state militia responsible for military jobs within the state. He was the first black person to command one of the four active units of the state militia. Mr. Williams was for many years the civilian director of the selective service system in New York City. He was a delegate to the Democratic National Convention three times and in 2008 was one of 27 presidential electors in Florida. His first marriage ended in divorce. In addition to his wife, he is survived by his sons, Kamau Bandele Kokayi and Robert Williams; his daughter, Chareese Adamson; his stepson, Derrick Johnson; his stepdaughter, Yolonda Johnson; 17 grandchildren; and three great-grandchildren.