Phyllis J. Oglesby, 16, a senior at Central Senior High School in Seat Pleasant and a lifelong resident of the Washington area, died May 22 at Prince George's General Hospital as a result of injuries she received earlier that day in an automobile accident on I-95 just south of George Palmer Highway. She lived in District Heights.

A spokesman for the Maryland State Police said the driver of the car in which Miss Oglesby was a passenger apparently fell asleep and that the vehicle veered off the road and struck a parked tractor trailer.

Miss Oglesby was taken to Prince George's General Hospital where she died. The other passenger in the automobile, Pamela T. McCullum, 17, of Forestville, was listed in critical condition at the hospital. The driver of the car was treated and released from the hospital and charged with failure to drive within a single lane, police said. The driver of the truck was not injured.

Miss Oglesby was a member of the National Honor Society, the student government association and the pom-pom squad at Central. She also played the flute in the school's concert band.

She was a member of the First Baptist Church of Highland Park in Landover, where she served on the young adult usher board.

Survivors include her parents, Linzie Jr. and Thelma Oglesby, of District Heights, and two grandparents, Mr. and Mrs. Linzie Oglesby Sr., both of Detroit.