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Martha Peabody Biographical information Date of birth 1941
 Age (1955) 14
Age (1985) 44
Physical description Gender Female
Hair color Brown
Eye color Brown
Behind-the-scenes information Played by Katherine Britton
Shoot it, Paw!!!" —Martha
Martha, his fourteen-year-old daughter, and eleven-year-old Sherman chose that moment [their father sitting down at the table for supper] to add their requests for the day. Actually, they had been bothering their father for nearly a month to buy a " television set. Everyone else in the county had one but them, it seemed. —From by Back to the Future George Gipe (quote, page 69)
Martha Peabody was the daughter of Otis Peabody and his wife Elsie, and the brother of Sherman.
It remains unclear as to whether Martha was still living in
Hill Valley in 1985 and 2015.
Behind the scenes
The character was billed as 'Peabody Daughter' in the closing credits of . She was given the first name of Martha only in the novelization.
Back to the Future