Undated (AP) _ Here are brief sketches of some of those killed in the crash of a United Airlines DC-10 outside Sioux City, Iowa:

Diana Ward-Robinson worked for a United subsidiary, and did so much flying it didn't occur to her to mention her flight plans when she last talked to her mother Monday. ''She didn't say she had to go on a two-day trip,'' recalled Sadie Ward, who thought she had gotten over worrying about her daughter's traveling. A former teacher in Detroit's public schools, Ward-Robinson was married to Fred Robinson, a United pilot.

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George Gillner of Traverse City, Mich., and Gary Bierlein of Saginaw, Mich., had just finished a demolition job in Denver and were headed for another job in Cincinnati. Bierlein, 39, was president of Bierlein Cos., founded by his father.

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Heather Rose O'Mara, 25, and a first lieutenant in the Army, was on her way to the funeral of a cousin, according to a spokesman at the Army's Fort Carson, Colo. She was from Ridgewood, N.J.

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Forest Mixon Jr. and his wife, Sandra, were on their way home from a conference in Laramie, Wyo. Mixon, 57, was credited with building the chemical engineering research program at the Research Triangle Institute in Chapel Hill, N.C., said the institute's executive vice president, Alvin Cruze. ''It will be a great loss to the institute,'' he said. Mrs. Mixon was 54.

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Steven and Mary Myers, both 36 and from Fairfax, Vt., were high school sweethearts, dating since the 7th grade. The couple, their daughter, Jade, 10, and son, MacAlister, 7, were returning from the wedding of Steven Myers' brother in Laramie, Wyo.

Steven Myers had been head of the math department at Bellows Free Academy in St. Albans for 13 years. He had resigned as head of the department in June to turn his woodworking hobby into a second business.

The Myers' children had attended school at the academy.

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Jamie Ellis, 12, and her mother, Claudia, were heading for a week's vacation at Myrtle Beach, S.C., to join the rest of their family, who had flown out earlier. They were from Colorado Springs, Colo.

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James K. Adkins Jr., 34, of Mount Pleasant, S.C., was the general sales manager at WCIV-TV in Charleston. He was returning from a conference of NBC television sales executives in Denver.