Black was born near Winchester, Illinois on August 3, 1836 to William and Mary Black. He spent his early life on a farm and quickly developed an interest in the natural world. By the age of 17, Black began studying medicine with the help of his brother, Dr. Thomas G. Black.
Black was born near Winchester, Illinois on August 3, 1836 to William and Mary Black. He spent his early life on a farm and developed an interest in nature at a young age. By the age of 17, he began studying medicine with the help of his brother, Dr. Thomas G. Black.