During the last week of February 1863 a hulking trooper in his early 30s from the Fifth New York Cavalry walked alone into Fauquier County, Virginia about forty miles west of Lincoln’s Capital to locate the Confederate guerrillas who for the past month had shattered the previous “All quiet along the Potomac” monotony often reported in the Northern press. Sergeant James Ames claimed he wanted to join the Rebels because he objected to the recent Emancipation Proclamation. He was taken to a secret outdoor gathering where every member – except one – assumed he was a spy, fit for immediate execution. The exception was the diminutive leader who was officially a private. But he was no ordinary private.
Within days 29-year-old John S. Mosby would be promoted to lieutenant. Twice before he performed invaluable scouts for Major General Jeb Stuart and General Robert E. Lee. First, he discovered the flaw in Union Major General George McClellan’s army deployment that enabled Jeb Stuart’s “Ride around McClellan” less than a year earlier. Second, after the Seven Days Campaign near Richmond last July, he informed Lee when Union soldiers started abandoning the Peninsula between the James and York Rivers to join Major General John Pope near Washington. The intelligence convinced Lee he could safely turn his back on McClellan to go after Pope before the latter was too heavily reinforced. The result was a smashing Confederate victory at Second Bull Run. By the end of 1862 Mosby asked Stuart for permission to organize a commando force to spread mischief among Yankees along the otherwise peaceful Potomac.