Marguerite Churchill

Marguerite Churchill, who was John Wayne's leading lady in his first major film, ''The Big Trail,'' died on Sunday at a nursing home here. She was 90. She was not yet 20 when she was cast opposite Wayne in the 1930 Raoul Walsh film ''The Big Trail.'' She also appeared with Will Rogers in ''Ambassador Bill'' and Frank Borzage's ''They Had to See

Darcy O'Brien, who turned a Hollywood childhood into award-winning fiction, taught literature at two universities and became the best-selling author of several ''true-crime'' books, died on Monday at his home in Tulsa, Okla. He was 59. The cause was a heart attack, a spokesman for his publisher said. Mr. O'Brien had won an Edgar Allen Poe Award for