Many of his and McCook's enlisted men ironically wound up in Andersonville, the target of their raid. Brown's Mill changed the course of the Atlanta Campaign, forcing Sherman to abandon his efforts to use cavalry to cut Atlanta's railroads and compelling him to begin a lengthy siege against his wishes.
Brown's Mill significantly altered the course of the Atlanta Campaign, leading Sherman to abandon his plans to use cavalry to disrupt Atlanta's railroads and initiate a protracted siege.