Jeremiah Boyle
After wintering his troops in Tennessee, he joined Maj. Gen. Don Carlos Buell's Army of the Ohio and participated in the Battle of Shiloh.Boyle dispatched troops several times to combat incursions and cavalry raids by John Hunt Morgan.He resigned in 1864 after his son, the Union Army's youngest colonel, Col. William O. Boyle, was killed in action at the Battle of Marion in Tennessee.Following his return home, Boyle speculated in land and became interested in street railways and urged Louisville officials to establish such service.He traveled to Europe and secured French investors to back a project to expand narrow-gauge rail service in Kentucky.