Which photographic pioneer became famous for his American Civil War photographs?

The photographic pioneer who became famous for his American Civil War photographs is Matthew Brady. Brady is often referred to as one of the fathers of photojournalism, and he played a significant role in capturing the realities of war through his camera. His photographs provided a stark and haunting visual documentation of the Civil War, bringing the harsh realities of battle to the public and shaping the way war was perceived by society at that time. He employed a team of photographers and created an extensive portfolio, with some of his most notable images depicting battlefields, soldiers, and the aftermath of combat. Brady's work laid the groundwork for documentary photography and raised awareness about the consequences of war.