1st Missouri Infantry Regiment (Union)

1st Missouri Infantry Regiment
ActiveMay 1861 – 31 Aug. 1861
Country United States
AllegianceUnited States Union
 Missouri
BranchUnion Army
TypeInfantry
SizeRegiment
EngagementsCamp Jackson Affair
Battle of Boonville
Battle of Dug Springs
Battle of Wilson's Creek
Commanders
Notable
commanders
Francis Preston Blair Jr.
Major General John McAllister Schofield of 1st Missouri Infantry Regiment. From the Liljenquist Family Collection of Civil War Photographs, Prints and Photographs Division, Library of Congress

The 1st Missouri Infantry Regiment evolved from one of several unofficial pro-Unionist Home Guards militia formed in St. Louis in the early months of 1861 by Congressman Francis Preston Blair Jr. and other Unionist activists. The militia that would become the First Missouri was largely composed of ethnic Germans, although Companies K and I had significant numbers of native born American citizens and Irish-Americans. Although initially without any official standing, beginning on April 22, 1861, the four "underground" militia regiments Blair helped organize were sworn into Federal service at the St. Louis Arsenal by Captain John Schofield acting on the authority of President Lincoln.[1][2]

The 1st Missouri Volunteer Infantry elected Congressman Blair colonel of the regiment. The new Missouri Volunteer regiments, subsequently elected (then) Captain Nathaniel Lyon as the brigadier general of the new brigade of Missouri volunteers. President Lincoln would later confirm Lyon's promotion from captain to brigadier general. The unit was converted to the 1st Missouri Light Artillery Regiment at the beginning of September 1861.

  1. ^ Gerteis, Louis S. (2001). Civil War St. Louis. Lawrence, KS: University of Kansas Press. p. 94. ISBN 0-7006-1124-X.
  2. ^ The official designation of the first four regiments organized at the St. Louis Arsenal were the 1st, 2nd, 3rd, and 4th Missouri Volunteers (3 Months Service).