First In, Last Out

When the Civil War began, Delaware was only superficially a slave state, with just 3% of the population being slaves. Two weeks after South Carolina seceded, Delaware’s legislature voted on January 3rd 1861 not to seceded and to stay in the Union. The Governor said that Delaware was the first state to ratified the Constitution, and join the Union, and it would be the last to leave it. Most of the men who fought in the war served for the Union, in the Delaware State regiments. Those who fought for the Confederacy went to Maryland or Virginia. Delaware was the only slave holding state in which no Confederate regiments or militia was raised.

Also good reading
http://www.bessel.org/cwlr/delaware.htm