Henry Bohlen was born in Bremen, Germany, on October 22, 1810. He emigrated to the United States as a youth and amassed a considerable fortune as a liquor dealer. Said to have served in the Mexican War, when the Civil War came, Bohlen was instrumental in recruiting the 75th Pennsylvania Volunteer Infantry, a Philadelphia regiment whose rolls were studded with such names as Matzdorff, Gerke, Ehrlich, Koerper, and Sauer. He became its colonel on September 30, 1861. The regiment wintered near Washington, attached to Louis Blenker's division which in March, 1862, was ordered to report to General John C. Fremont in the Mountain Department. Bohlen went with it and was promoted to brigadier general of volunteers on April 28, 1862. In the course of Stonewall Jackson's celebrated Valley campaign, Bohlen was under the command first of the dubious Blenker and then of the scholarly but inept Carl Schurz in the corps of the even more hapless Franz Sigel. Bohlen performed capably at Cross Keys and helped cover the retreat of the units of the Army of Virginia which had fought at Cedar Mountain under the command of N. P. Banks. On August 22, 1862, Bohlen's brigade was pushed back across Freeman's Ford on the Rappahannock while conducting a seemingly purposeless reconnaissance in the face of Jackson's whole force. At this ford, four miles above the present village of Remington, Virginia, Bohlen was killed while attempting to re-cross the river with his command. His remains now lie in Laurel Hill Cemetery, Philadelphia.
Reference: Generals in Blue. Lives of the Union Commanders by Ezra J. Warner. Louisiana State University Press. Baton Rouge.