Minnesota provided a large number of units in the American Civil War proportionate to its small population of approximately 170,000 in 1861-1865, with some 26,717 state volunteers being recorded, although a number of those are individuals who reenlisted in other units.
During the American Civil War, the State of Vermont gave strong support to the Union war effort, raising troops and money. According to Rachel Cree Sherman:
By the spring of 1865 Vermont was devastated, having sent one tenth of its entire population to war, with a loss of over 5,000 lives to battle, wounds, and disease. The state had dedicated nearly $10 million to support the conflict, half of that amount offered up by towns with no expectation of recompense.
New Hampshire was a member of the Union during the American Civil War.
The following list is a bibliography of American Civil War Confederate military unit histories and are generally available through inter-library loan. More details on each book are available at WorldCat. For an overall national view, see Bibliography of the American Civil War. For histories of the Union, see Bibliography of American Civil War Union military unit histories. For a guide to web sources see: Carter, Alice E.; Jensen, Richard. The Civil War on the Web: A Guide to the Very Best Sites—Completely Revised and Updated (2003).