You searched for: Topic Troop movements--Union--1860-1870 Remove constraint Topic: Troop movements--Union--1860-1870 Topic United States--History--Civil War, 1861-1865--Balloons Remove constraint Topic: United States--History--Civil War, 1861-1865--Balloons Topic United States--History--Civil War, 1861-1865--Sources Remove constraint Topic: United States--History--Civil War, 1861-1865--Sources Topic United States. Army--Military life--History--19th century Remove constraint Topic: United States. Army--Military life--History--19th century Topic letters; letter; Union soldier; Union Army; American Civil War; War between the States; War of Secession; War of the Rebellion; 7th Michigan; embossed stationery; balloon Remove constraint Topic: letters; letter; Union soldier; Union Army; American Civil War; War between the States; War of Secession; War of the Rebellion; 7th Michigan; embossed stationery; balloon