George Boardman Boomer (July 26, 1832 – May 22, 1863) was a Union Army colonel who served as a brigade commander between February 12, 1863, and May 22, 1863, during the American Civil War.

[5] At the outbreak of the Civil War, he raised a company for the Union Army which became part of the 26th Missouri Volunteer Infantry Regiment[6] and by 1863 was promoted to colonel.

General Hovey’s Division was being hard pressed, and falling back, the Third Brigade, Col. Boomer, commanding, was ordered up on the double-quick.

The ground over which the 26th Missouri passed, was very much obstructed, and in consequence some of the companies had to break the line of battle and move by the flank under the shells of the enemy.

The position gained by the above movement was a strong one, and enabled us to stop the enemy who outnumbered the 26th Missouri, which finally drove the Confederates from before it, after firing forty rounds of ammunition.

[9] According to Benjamin Devor Dean, on May 22 Colonel Boomer led his men on a brave charge upon one of the forts that made up Vicksburg's defenses.

As Boomer predicted, the fort had not been silenced and immediately he and his men came under heavy fire - "an incessant shower of shot, shell and rifle balls."