WASHINGTON (AP) - Letitia Baldrige, the White House social secretary during the Kennedy administration who came to be regarded as an authority on etiquette, has died.

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The 86-year-old Baldrige died Monday in Bethesda, Md., according to friend Mary M. Mitchell. Baldrige also served as the chief of staff for first lady Jacqueline Kennedy from 1961 to 1963.

Baldrige handled the first lady's schedule and mail and served as the advance scout on trips. She was also responsible for the guest list and overall coordination of events.

At one point, she was tasked with finding a French chef to oversee the White House kitchen.