Aug 10 Nathaniel Lyon, American Brigadier-General (Union Army), 1st Union General to die in battle at 43 Aug 12 Eliphalet Remington, American firearms manufacturer (Remington Arms Co., L.L.C.), dies at 67 Aug 17 Alcée Louis la Branche, American Politician (b. 1806) Aug 22 Xianfeng, Emperor of the Manchu-led Qing dynasty, dies at 30 Aug 28 William Lyon Mackenzie, Canadian-American newspaper publisher, politician, and failed rebel leader, dies at 66 Aug 29 Franz Joseph Glæser, Czech-Danish composer, dies at 63 Jul 1861 Famous Deaths by Year Sep 1861 Famous People by Cause of Death Assassination Drug Overdose Gunshot Wound Murder Plane Crash Suicide