After you've experienced this interesting exhibit, we invite you to take a look at this Bullis book:
Statistical Record of the Armies of the United States
By Frederick Phisterer, Late Captain U. S. Army
The comprehensive data in this book was "compiled from Army orders, registers of regulars and volunteers, reports of the Provost-Marshall, and the Adjutant-General U.S. Army, Medical History of the Rebellion, and other sources."
In Part I, the "Calls for Troops" on April 15, 1861 on page 3 shows data for 26 states, both their quota and men actually furnished. Later calls for troops are enumerated on several more pages, with a summary for the war on page 10. Military divisions, strength of the Army at various dates, as well as national cemeteries, are covered in the following pages.
Part II lists the chronological record of engagements, battles etc. from 1861 to 1865, and general officers of the Armies during the "War of the Rebellion" are covered in Part III.
So there you have it - an exhibit and a book to enhance your knowledge and appreciation of the events of the Civil War. (And there are more books on the Civil War in the Bullis collection. We're always glad to help you access them.)