The Twenty-Seventh Connecticut Volunteer Regiment was formed as a result of President Abraham Lincoln's call for 300,000 volunteers to serve for nine months on August 4, 1862. The Twenty-Seventh enlisted men primarily from New Haven County and the city of New Haven, but also from the neighboring towns of Madison, Milford, Meriden, Wallingford, Branford, Clinton, and Guilford.1

Among the officers commissioned to the regiment were Colonel Richard S. Bostwick of New Haven, Lieutenant Henry C. Merwin of New Haven, and Major Theodore Byxbee of Meriden.1

1Winthrop Dudley Sheldon The "Twenty-Seventh," : A Regimental History (New Haven, Connecticut: Morris and Benham, 1866), 10.
1Sheldon The "Twenty-Seventh", 11.