Firestone was born on December 20, 1868 on the Columbiana, Ohio farm built by his paternal grandfather. He was the second of Benjamin and Catherine (née Flickinger) Firestone's three sons.

Firestone's paternal great-great-great grandfather, Nicholas Hans Feuerstein, immigrated from Berg/Alsace/France, in 1753, and settled in Pennsylvania.

Harvey Samuel Firestone's Family Tree