Battle of Beaver Dam Creek Battle of Beaver Dam Creek The Battle of Beaver Dam Creek, also known as the Battle of Mechanicsville or Ellerson's Mill, took place on June 26, 1862, in Hanover County, Virginia, as the first major engagement of the Seven Days Battles during the Peninsula Campaign of the American Civil War. It was the start of Confederate General Robert E. Lee's counter-offensive against the Union Army of the Potomac, under Maj. Gen. George B. McClellan, which threatened the Confederate capital of Richmond. Lee attempted to turn the Union right flank, north of the Chickahominy River, with troops under Maj. Gen. Thomas
Battle of Cabin Creek two howitzers were en route as a relief force. The train arrived at Cabin Creek station during the afternoon of September 18. On 16 September, as they were waiting for the supply train, the Confederates happened to encounter a detachment of black Union soldiers conducting hay-making operations at Flat Rock, near the confluence of Flat Rock Creek and the Grand River, about northeast of present-day Wagoner, Oklahoma and northwest of Fort Gibson. Captain E. A. Barker leading a small group of the 2nd Kansas Cavalry and a detachment from the 1st Kansas Colored Infantry, who were guarding the operation, were