RYAN W. KEATING is an assistant professor at California State University, San Bernardino. He is the author of the forthcoming book Shades of Green: Irish Regiments, American Soldiers, and Local Com...view moreRYAN W. KEATING is an assistant professor at California State University, San Bernardino. He is the author of the forthcoming book Shades of Green: Irish Regiments, American Soldiers, and Local Communities in the Civil War Era.view less