* Weber, Jennifer L. ''Copperheads: The Rise and Fall of Lincoln's Opponents in the North'' (2006), the standard history [https://www.amazon.com/Copperheads-Rise-Lincolns-Opponents-North/dp/0195341244/ref=sr_1_1?ie=UTF8&s=books&qid=1209351976&sr=8-1 excerpt and text search] | * Weber, Jennifer L. ''Copperheads: The Rise and Fall of Lincoln's Opponents in the North'' (2006), the standard history [https://www.amazon.com/Copperheads-Rise-Lincolns-Opponents-North/dp/0195341244/ref=sr_1_1?ie=UTF8&s=books&qid=1209351976&sr=8-1 excerpt and text search] |