Nancy Modena McCown (née Hensley; 22 September 1878 – 8 June 1989) was a verified American supercentenarian. She was born as Nancy Hensley in Delta County, Texas. Her parents were John and Jane Hensley. John was a Civil War veteran. Jane passed away when McCown was only three years old. She had 5 siblings in total. The family maintained a farm of 103 acres. Nancy McCown died on 8 June 1989, at the age of 110 years, 259 days.