The Younger Brothers were a group of American outlaws in the late 19th century, primarily known for their involvement in the American Old West. The most famous members were Cole Younger, Jim Younger, and Bob Younger, who were associated with the notorious James-Younger Gang. They gained notoriety for their bank and train robberies, often targeting small towns in the Midwest. The Younger Brothers were born in Missouri and became prominent figures in the criminal underworld after the Civil War. Their criminal activities led to numerous confrontations with law enforcement, culminating in their capture after a failed bank robbery in Minnesota in 1876.