Robert O. Duncan Jr., who was Prince George’s County’s chief administrative officer under then-County Executive Parris N. Glendening, died Nov. 13 at his home in Laurel. He was 72.

He had a stroke, said his wife, Paulette B. Duncan.

Mr. Duncan worked 25 years for the Prince George’s government, beginning in 1970 as an accounting supervisor for the Board of Education. He was director of budget and management from 1976 to 1986 and deputy chief administrative officer from 1986 to 1994. He retired in 1995 as chief administrative officer.

Robert Owen Duncan Jr. was born in Baltimore. He graduated in 1963 from what is now Loyola University Maryland in Baltimore. He received a master’s degree in administrative science from Johns Hopkins University in 1980.

After retiring from the Prince George’s government, Mr. Duncan spent nine years as chief of the Bureau of Accounting and Payroll Services for the city of Baltimore. From 2002 to 2006, he was an appointed member of the Prince George’s Board of Education.

In 2011, he was named to the Prince George’s County Personnel Board and served on the board until his death.

Survivors include his wife of 46 years, Paulette Boarman Duncan of Laurel; and two sons, Robert F. Duncan of Washington and Brian C. Duncan of Fort Lauderdale, Fla.

— Bart Barnes