This collection contains a copybook maintained by Warren French, captain of Company A, 42nd Massachusetts Volunteer Militia during the American Civil War. Within the book, French made copies of muster rolls; clothing, ordnance and equipage reports; special and general orders; and memoranda pertaining to the 42nd during its 100 days' service of garrison duty in the Washington, D. C. area. Accompanying the copy book are photographs of French and a floral memorial.