* Russell A. Pendergast, 57, a senior executive of the Rockefeller Group in New York for the last 10 years, died of cancer July 2 at his home in Wilton, Conn. At the time of his death he was the vice president of corporate communications, personnel and administration for the group, making him the spokesman in many of the company's large-scale property and real-estate transactions. The Rockefeller Group describes itself as one of the nation's leading privately held companies in real estate, entertainment and telecommunications.
* Elizabeth Hannah Waters, 83, a modern dancer and choreographer who performed with Hanya Holm's company in the 1930s and who founded the dance program at the University of New Mexico, died June 5 at her home in Echo Canyon, N.M.
* Gerald P. Culkin, 87, a retired New York City judge whose celebrated cases included the "capeman" murderer, Clifford Irving's fake Howard Hughes autobiography and Andy Warhol's shooting, died Tuesday at St. Vincent's Hospital in Manhattan.
* Gerald D. Stibbs, 83, who helped found the University of Washington School of Dentistry and became internationally known for his gold foil technique, has died of cancer in Seattle.
* The Dowager Lady Fermoy, 84, the maternal grandmother of Diana, Princess of Wales, died Tuesday at her home in London.
* Olive Ann Beech, 89, who co-founded Beech Aircraft Corp., died Tuesday in Wichita, Kan. She retired as company president in 1966 but remained board chairman until 1982.
* Harry Russell Ballinger, 100, a noted painter and illustrator, died July 3 in New Hartford, Conn. He illustrated for magazines such as the Saturday Evening Post, Ladies Home Journal, The Red Book, Colliers, Cosmopolitan, McCalls and for the popular Zane Gray novels.
* Laurence W. Beal, retired managing editor of the Times-Standard of Eureka, Calif., died July 3 at 87. During World War II, he was credited with exclusive photographs and stories about the torpedoing of the tanker Emedio off the Humboldt County coast 12 days after the Japanese attack on Pearl Harbor.