John McElroy (1846-1929) was an American printer, soldier, journalist, and author, best known for his vivid portrayal of his experiences as a prisoner of war in 'Andersonville (Illustrated)'. Born in New York, McElroy moved to Illinois as a child and enlisted in the Union Army during the Civil War at the tender age of sixteen. Captured in 1863, he spent nearly two years enduring the harsh conditio...