World's oldest person Gertrude Baines dies in Los Angeles at 115

It was a title Baines quietly relinquished Friday when she died in her sleep at Western Convalescent Hospital, her home since she gave up living alone at age 107 after breaking a hip.

She likely suffered a heart attack, said her longtime physician, Dr. Charles Witt, although an autopsy was scheduled to determine the exact cause of death.

"I saw her two days ago, and she was just doing fine," Witt told The Associated Press on Friday. "She was in excellent shape. She was mentally alert. She smiled frequently."

Baines was born in Shellman, Ga., on April 6, 1894, when Grover Cleveland was in the White House, radio communication was just being developed and television was still more than a half-century from becoming a ubiquitous household presence.

She was 4 years old when the Spanish-American War broke out and 9 when the first World Series was played. She had already reached middle age by the time the U.S. entered World War II in 1941.

Throughout it all, Baines said last year, it was a life she thoroughly enjoyed.