The Battle of Brown's Mill was fought July 30, 1864, in Coweta County, Georgia, during the Atlanta Campaign of the American Civil War. Edward M. McCook's Union cavalry, on a daring raid to sever communications and supply lines in south-central Georgia, was defeated near Newnan, Georgia, by Confederate forces under Joseph Wheeler. The failure of McCook's column and a concurrent ill-fated raid by George Stoneman forced William T.