Documenting the horrors of Mauthausen concentration camp

At just 22 years old, Army medic LeRoy 'Pete' Petersohn played a crucial role in liberating the Nazi concentration camp Mauthausen during World War II, documenting the horrific conditions he witnessed in a detailed letter home that his son has preserved as an important historical testimony. Petersohn, who served as a medic with the American forces, arrived at the Austrian camp shortly before its liberation by Allied troops in May 1945, encountering scenes of unimaginable suffering and brutality that left a permanent mark on him. The letter, written shortly after the liberation, describes emaciated prisoners, mass graves, and the systematic dehumanization that characterized the Nazi regime's extermination program, providing a firsthand account that historians consider invaluable for understanding the full scope of the Holocaust. According to his son, Petersohn felt an urgent responsibility to document these atrocities, believing that future generations needed to witness the truth of what had occurred to prevent such horrors from being repeated or forgotten. The Mauthausen-Gusen camp complex was one of the most brutal Nazi concentration camps, where tens of thousands of people perished from starvation, disease, forced labor, and systematic executions, particularly in the quarry known as 'The Stairs of Death' where prisoners were forced to carry heavy loads up steep steps.