Bronko Nagurski (Bronsislau Nagurski) was born in Rainy River, Ontario, Canada. His parents, "Mike" and Michelina Nagurski, were immigrants from Galicia (now Western Ukraine) and were of Ukrainian and Polish descent.

Bronko Nagurski (Bronislau Nagurski) died of cardiac arrest at the age of 81 in International Falls, Michigan. He is buried at Forest Hill Cemetery in International Falls, Michigan.