* Dr. Alois M. Nagler, 85, a scholar of theater history, died April 26 at his home in Wallingford, Conn. He was a co-founder and past president of the International Federation for Theater Research and a co-founder and former chairman of the American Society for Theater Research. His books included "Sources of Theatrical History" and "Shakespeare's Stage."
* Lawrence Calcagno, 80, of Manhattan, N.Y. -- an artist who came to prominence during the heyday of Abstract Expressionism in the 1950s for his series "The Black Paintings" -- died April 22 in State College, Pa., while visiting relatives.
* Robert H. Brimberg, 64, a Wall Street executive who was known for the lunches he held so that major investors could meet each other and talk about their business, collapsed and died of cardiac arrest at a restaurant in Manhattan Thursday night. He was a big man and in "The Money Game," a 1967 best seller about Wall Street by Adam Smith, Mr. Brimberg was portrayed under the name of "Scarsdale Fats."
* Dr. William B. Ober, 72, a retired pathologist and author who was an outspoken advocate of a woman's right to choose an abortion, died April 27 in Washington. The Tenafly, N.J., resident was attending a meeting when he collapsed after an aortal aneurysm.
* Sylvia A. Boone, 52, a scholar of African and women's art and the first black woman to be granted a tenured professorship at Yale University, died of heart failure April 27 at her home on campus.
* Richard B. Donchian, 87, an early leader in the commodities futures market, died of congestive heart failure April 24 at a hospital in Fort Lauderdale, Fla.
* Ethel Magafan, 76, a muralist and painter of semi-abstract Western landscapes, died after a series of strokes April 24 at her home in Woodstock, N.Y.
* Robert Huyot, 84, an international hotel consultant and former president of the Hotel Carlyle in New York City, died Thursday at his home in Carmel, N.Y.
* Emerson D. Fowler, 77, a co-founder of Anchor Paint Co. noted for pioneering the development of specialty coatings, died Tuesday of cancer in Tulsa, Okla. The chemist developed a formula for latex paint in the 1950s.
* Philip F. Murphy, 50, a former reporter and editor at The Associated Press and The Boston Globe, died Wednesday in Brewster, Mass., after a three-year fight with melanoma.
* John Alden "Jack" Blethen, 74, publisher of The Seattle Times from 1967 to 1982, died of Huntington's disease Wednesday.
* Richard C. Tuttle, 79, a former city editor at the The Tribune-Star of Terre Haute, Ind., died April 24.
* Gottlieb Hammer, 82, a financial consultant and active supporter of Jewish Palestine and of Israel, died of bone cancer April 19 at Miami Heart Institute in Florida.
* William C. McNeil, 46, author, chairman of the history department at Barnard College and an associate professor, died of a heart attack April 18 at Northern Westchester Hospital Center in Mount Kisco N.Y.
* Edmund C. Horman, 87, whose crusade probing his son's disappearance was retold in the film "Missing," died of pneumonia April 16 in New York.
* Robert Westall, 63, the author of more than 30 books for children, died of respiratory failure April 15 in Warrington Hospital in Cheshire, England. He published his first novel, "The Machine-Gunners," in 1975. Based on his childhood experiences, it is the story of five British teen-agers who find and hide a machine gun during World War II.
* Edward Burk Henning, 70, the retired chief curator of modern art at the Cleveland Museum of Art, died of complications from a stroke April 18 at his home in Cleveland Heights.
* Dan Kirby, 96, who helped build Western Surety into the nation's largest bonding company, died April 24 in Sioux Falls, S.D.
* Belgian writer Pascal de Duve, 29, whose autobiographical chronicle of a man doomed to die of AIDS catapulted him to fleeting fame in France, died of the disease April 17.
* John C. Shepherd, 67, president of the American Bar Association in 1984 and 1985, died in his sleep on Friday at home in St. Louis, his family said. Surviving are his wife, the former Bernice Hines; two sons, J. Michael of New York City and William N. of Washington; a brother, Donald of Newport, N.C.; a stepsister, Margaret Sheehan of Peoria, Ill.; a stepbrother, Thomas of Springfield, Ill., and two grandchildren.