What a cute little girl she was! Coster was the daughter of Napoleon A. "Poley" Johnson and Mary Elizabeth Lester. You may remember another Napoleon Johnson who was killed when he was drug by a mule (read about it here). Boney was the son of William Albert "Billy" Johnson and was named after his Uncle Poley.
Coster was born June 27, 1900 so it would appear that the photo below was made about 1903 or 1904. She was married to Everett Linwood Wilemon, and they had two children - Terry and Jerry Wilemon. Terry shared this photograph and others with Don Dulaney. Thanks, Terry!