[Illustration: ONE OF THE FIRST UNION VOLUNTEER REGIMENTS.] The First Minnesota, a regiment that fought in the flanking column at Bull Run. On April 14, 1861, the day after Sumter's surrender, the Federal Government received an offer of a volunteer regiment from Minnesota, and on April 29, the First Minnesota was mustered into service by Lieutenant W. W. Sanders, U. S. A. Under Colonel William O. Gorman the regiment proceeded to Washington in June and, attached to Franklin's Brigade, Heintzelman's Division of McDowell's Army, at Bull Run gave an excellent account of itself, finally retiring from the field in good order. A record for conspicuous bravery was sustained by the First Minnesota throughout the war, notably its famous charge on the field of Gettysburg, July 2, 1863. The photograph was taken just before the regiment left Fort Snelling in 1861. In the front line the first from the left is Lieut. Colonel Stephen Miller, the next is Colonel Gorman. On his left hand is Major Dyke and next to him is Adjutant W. B. Leach. Between the last two and behind them is Captain William Colvill, while at the left hand of Adjutant Leach is Captain Mark Downie. At the extreme right of the picture stands General J. B. Sanborn with Lieutenant Sanders (mustering officer) on his right hand, and on Sanders' right is the Honorable Morton S. Wilkinson. Colvill, as Colonel, led the regiment in its Gettysburg charge. [Illustration: MRS. GREENHOW, THE CONFEDERATE SPY, WITH HER DAUGHTER, IN THE OLD CAPITOL PRISON COPYRIGHT, 1911, PATRIOT PUB. CO.] Mrs. Rose O'Neal Greenhow, a zealous and trusted friend of the Confederacy, lived in Washington at the opening of the war. It was she who, on July 16, 1861, sent the famous cipher message to Beauregard, "Order issued for McDowell to move on Manassas to-night." Acting on this, Beauregard promptly arranged his army for the expected attack, while Johnston and "Stonewall" Jackson hastened from the Valley to aid in repelling the Federal advance. Mrs. Greenhow's secret-service work was cut short on August 26th, when Allan Pinkerton, the Federal detective, arrested her and put her under military guard at her home, 398 Sixteenth Street. Afterward she was transferred to the Old Capitol Prison. She remained there until April, 1862. On June 2nd, after pledging her word not to come north of the Potomac until the war was over, Mrs. Greenhow was escorted beyond the lines of the Union army and set at liberty. It was later discovered that she had, even while in prison, corresponded extensively with Colonel Thomas Jordan, of General Beauregard's staff. [Illustration: TROOPS THAT FOUGHT AT BULL RUN--A THREE MONTHS' COMPANY.]