- Charles Hamlin, Union Major and Brigadier General, 1st Maine Heavy Artillery Regiment, Son of U.S. Vice President Hannibal Hamlin, Eyewitness to the Assassination of Abraham Lincoln - How to Do It by Edward Everett Hale – 1889, Roberts Brothers, Boston. Hardcover. Gift inscription of Charles Hamlin son of Hannibal Hamlin (VP under Lincoln 1861-65). Inscribed to Gertrude Harmon, Bangor, Maine. and having the bookplate of J. W. Harmons private library. Floral eps. Very nice. From Wikipedia: Hamlin began his military career as a major in the 1st Maine Heavy Artillery Regiment. He gained a staff position as major and assistant adjutant general in the Army of the Potomac. He fought in the Battle of Gettysburg among other engagements. Hamlin served as assistant adjutant general on the staffs of Generals Hiram G. Berry and Albion P. Howe. While serving under Gen. Howe in Washington, Hamlin was in the audience at Ford's Theatre when President Lincoln was assassinated. Hamlin was mustered out of the U.S. Volunteers on September 14, 1865. [3] On January 13, 1866, Hamlin was nominated by President Andrew Johnson for the award of the honorary grade of brevet brigadier general United States Volunteers, to rank from March 13, 1865 for faithful and meritorious services. The U.S. Senate confirmed the award on March 12, 1866. Along with his sister Sarah, Hamlin was at Ford's Theater on the night of the Lincoln assassination.