Henry Sledge is the son of acclaimed author Eugene B. Sledge, who is known for With the Old Breed and China Marine. Growing up, he witnessed firsthand the creation and lasting impact of his father's memoir, and through their conversations about the Pacific War, developed a lifelong passion for World War II history.

Henry is the author of The Old Breed... The Complete Story Revealed, a companion to his father's work. His writing has appeared in World War II Magazine, Naval History Magazine, and Valor. He has cohosted and appeared on numerous podcasts, including the Jocko Podcast, and has been featured in documentaries and historical programming with HBO, Fox Nation, History Channel, and American Heroes Channel. His speaking engagements include American Veterans Center, the Society for Military History, The Citadel, the International WWII Conference in New Orleans, and the Library of Congress. He holds a BA from Auburn University (1988) and lives with his family in Birmingham, Alabama.