MARRIED. William Brennan, 76, U.S. Supreme Court Justice, appointed by President Eisenhower in 1956; and Mary Fowler, 68, his secretary for 26 years; in Washington, D.C. Brennan's first marriage of 54 years ended when his wife Marjorie died of cancer 3 1/2 months ago. Colleagues on the court learned of the surprise marriage in a memo last week saying that the newlyweds had left for a honeymoon in Bermuda.

SEEKING DIVORCE. Johnny Carson, 57, master of the Tonight show, and Joanna Carson, 42, former model; after ten years of marriage (his third, her second), no children; in Los Angeles. Both filed petitions, Johnny stating that they separated Nov. 7, 1982. and Joanna claiming that the separation began March 4, 1983. The date debate is really about money, since the community property their lawyers will divide up may or may not include a chunk of the new multimillion-dollar NBC contract Carson signed late last year.

DIED. Faye Emerson, 65, elegantly groomed, blond-chignoned actress of stage, films but mostly television, who was one of the pioneers of the new medium's late-night interview shows with CBS's classy early 1950s Faye Emerson's Wonderful Town; of cancer; in Deya, Majorca.

DIED. Donald Maclean, 69, British diplomat who with his fellow Cambridge graduate Guy Burgess was at the center of Britain's most infamous spy scandal in the past half-century; of cancer; in Moscow. Recruited at college in the 1930s with his lover Burgess by Anthony Blunt, then a don, Maclean was a mole in the British embassy in Washington, where he had access to highly classified Allied documents, including U.S. atomic secrets. Tipped by another Soviet mole that they were suspected of spying, Maclean and Burgess escaped from England to the U.S.S.R. in 1951. "My God, Maclean knew everything!" exploded then Secretary of State Dean Acheson. A third Cambridge traitor, Harold ("Kim") Philby, remained under cover until 1963, when he too fled to the Soviet Union, the same year that Burgess died. In Moscow, Maclean had an innocuous job with a foreign policy think tank and, always a heavy drinker, died alone in his luxurious apartment. Said a Soviet official: "He had no Russian friends. Nobody likes a turncoat--in any country."

DIED. Igor Markevitch, 70, exacting Russian-born, Swiss-reared conductor who began as a composing prodigy--dubbed Igor II, he was expected to follow in Stravinsky's footsteps--but in 1930 picked up the baton and became best known as a master of conducting precision; after a heart attack; in Antibes, France. Markevitch advocated the use of standardized gestures on the podium, saying, "Baton technique is to a conductor what fingers are to a pianist. Certain movements produce certain sounds."

DIED. Charles ("Rip") Engle, 76, head football coach at Pennsylvania State University from 1950 to 1965 who developed the Nittany Lions into one of the nation's toughest teams (104 victories, 48 defeats, four ties); in Bellefonte, Pa. Engle was constantly worried that he would be "humiliated," even though his Penn State squad never had a losing season.

DIED. Ulf von Euler, 78, groundbreaking Swedish physiologist who in the 1930s discovered prostaglandins, the remarkable hormones used in birth control pills, and who was co-winner of the 1970 Nobel Pri/e in Physiology for his work in detecting noradrenaline, a key neurotransmitter that controls such involuntary actions as the heartbeat and the body's response to stress; of arterial disease; in Stockholm. Von Euler's research led to the identification of a number of so-called transmitter substances, including polypeptides, which appear to be the agents that deliver messages of pain to the brain.

DIED. William Black, 80, iconoclastic founder and chairman of Chock Full O' Nuts Corp.; of cancer; in New York City. Black parlayed a $250 investment hi a Broadway nut stand in the 1920s into a $116 million company that rests on a New York City chain of lunch counters, but now does 83% of its business nationally marketing its "heavenly coffee." A philanthropist who gave millions for Parkinson's disease and cancer research, Black was unusually generous with employee benefits--birthdays off with full pay, bonuses for perfect attendance, interest-free loans--and in the past year faced,a bitter battle with dissident stockholders to retain control of his company. Speculation is that a new fight will soon begin.

DIED. William Walton, 80, one of the century's major British composers whose relatively small output melded lyricism with contemporary rhythms; of a heart attack; at his home on the island of Ischia, Italy. At 21, Walton scandalized London with his first important work, Fagade, irreverent musical parodies written to accompany poems by his patron Edith Sitwell. He later turned to more conventional forms, such as the oratorio Belshazzar's Feast and his romantic concertos for violin, viola and cello. A slow, painstaking composer who once complained, "A lot of the time music irritates me to madness, especially my own," he nonetheless wrote up to the end; a few days before his death he completed the score for the ballet Varii Capricci, which will premiere in New York City next month. This file is automatically generated by a robot program, so viewer discretion is required.