The 6th Delaware Infantry Regiment was an infantry regiment of the Union Army in the American Civil War. The regiment was formed in Delaware in late 1862 with a 90-day term of enlistment. According to the regiment's service terms, the men of the regiment would continue their civilian occupations, drilling twice a week, until called upon for active duty; they would not be paid until they entered active service. The regiment completed formation on December 18, 1862, but would not be called into active service until June 27, 1863 under the command of Colonel Edwin Wilmer. While on active service, the regiment guarded a railroad in Maryland and also guarded prisoners of war at Fort Delaware. By August 23, all but one of the regiment's companies had been mustered out of service; the final one,
