My experience with researching miners in Idaho in the war was many were from the midwest, some were dodging the draft. I found a married man from Iowa who abandoned his family (wife and all) and headed for Idaho were he married a young pioneer girl 20 years younger than himself. I followed him to California where he settled in Modoc county. His decendents say a he refused to let people take his picture and never revealed his origins. He came from a quaker family in Iowa and he was born in Ohio. If you look at the numbers of miners in mining districts during the war the populations were very high for the areas, many able bodied men who should have been in the Army.