He was a delegate to the State constitutional convention in 1850, and a member of the peace conference of 1861 held in Washington, D.C., in an effort to devise means to prevent the impending American Civil War.
[1] Crisfield however argued that freedom would be worse for the slaves than slavery, especially in time of war, but such arguments could no longer hold back the abolitionist tide.
However, in 1863 and 1864 growing numbers of Maryland slaves simply left their plantations to join the Union Army, accepting the promise of freedom in return for military service.
[1] In 1863 Crisfield was defeated in local elections by the abolitionist candidate John Creswell, amid allegations of vote-rigging by the army.
He was instrumental in building the Eastern Shore Railroad and served as president, connecting it to the fishing town of Somers Cove which was growing rapidly due to the seafood industry there.