The governor and his staff communicated by telegraph with the highest and most prominent government and military leaders in the North, including President Abraham Lincoln, Secretary of War Edwin M. Stanton, United States Senators and Representatives, other Northern state governors, and generals commanding in all the theaters of operations. As perhaps the most influential of the Northern state governors during the Civil War, Morton exerted significant influence over federal policies and military planning. A tireless worker for Union victory, he communicated his ideas, plans, news, and opinions by telegraph wires to other leaders to shape war policy. As such, these volumes may be the best documentation of an important Northern governor during the Civil War to survive. The physical Civil War Governor Morton Telegraph books are located at the Indiana State Archives, who collaborated with IUPUI University Library to make this digitization project possible. Historians studying politics and military planning at the highest levels of federal and state government during the Civil War will find many important communications. Persons studying the organization and actions of Indiana volunteer regiments and batteries will gain useful insights. Biographers, local historians, and genealogists will all learn much from consulting these records.