George W. Renchard Jr., 74, a retired Foreign Service officer and former amabassador to Burundi, and his wife, Stellita Stapleton Renchard, 66, who was active in historical preservation and Latin American art, were killed Jan. 15 in a traffic accident in Saudi Arabia.

A State Department spokesman said the Renchards were passengers in a car driven by a son, George Ronald Renchard, when it collided with another vehicle on a road between Khamis Mushayt and Jizan. The spokesman said two Saudi Arabians in the other vehicle also were killed and that George Ronald Renchard suffered broken ribs.

The Renchards, who lived in Washington, were visiting their son, the representative of a shoe company in Saudi Arabia, when the accident occurred.

Mr. Renchard, who was born in Detroit, graduated from Princeton University and went into the Foreign Service in 1930. His foreign assignments included Turkey, Ceylon, Canada, France, Germany, Austria, Holland and Bermuda, where he was the U.S. consul general.

During World War II, he was a special assistant to Secretary of State Cordell Hull. He was named ambassador to Burundi in 1968 and retired from the State Department in 1969.

He was a member of the F Street, Chevy Chase and Metropolitan clubs.

Mrs. Renchard, who was born in Omaha, Neb., grew up in Washington. She was educated in France and New York. She was active in the Red Cross and was a former president of the D.C. Chapter of the Colonial Dames of America.

She also was a member of the National Trust for Historic Preservation and a founder of the Societe de Conservation du Vieux Quebec in Canada. In 1979, she established the Stapleton-Renchard Foundation for Colonial Latin-American Art, to which she donated her father's collection of books, paintings and other works of art. She was a supporter of the Museum of African Art.

In addition, she was active in behalf of the hearing and speech center at the Children's Hospital National Medical Center.

Mrs. Renchard was a member of the Sulgrave Club.

The Renchards were members of the parish of St. Matthew's Cathedral.

In addition to George Ronald Renchard, their survivors include another son, Randolph, of Alexandria, and two daughters, Roberta Freer of Alexandria, and Stella Mae Seamons of Boston and eight grandchildren.