[2] Most of the volunteers in Missouri's early regiments were German immigrants, and Lyon supported the creation of a regiment recruited from St. Louis' Irish-American population to demonstrate that the Union cause in Missouri had support beyond the German-American community.
Many St. Louis Irish (the second largest immigrant community in the city) were ambivalent about the new Republican Party and Federal military action against seceding states.
The 7th Missouri was intended to attract ethnic-Irish support by focusing on the Irish community's "ownership" of the regiment, and make a public political statement by demonstrating that there were Irish Unionists in Missouri.
On the other side is a 'sunburst' in all its glory, with the Irish war cry as a motto - 'Faj an Bealac!
4th Brigade, 3rd Division, Left Wing, XIII Corps, Department of the Tennessee, to December 1862.
1st Brigade, District of Memphis, Tennessee, XVI Corps, to August 1864.
1st Brigade, 2nd Division, XIX Corps, Department of the Gulf, to December 1864.
Moved to Booneville, Mo., July 1–4, 1861, then to Rolla August 30 and to Syracuse, Mo., October 5–10.
Expedition to Blue Springs January 20-February 3, 1862 (Companies B, F, and H detached from regiment November 21, 1861, and ordered to Kansas City.
Moved to Pittsburg Landing, Tenn., May 9–14, and guard and fatigue duty there until August 15.
Moved to Lake Providence, Louisiana, February 21, and duty there until April.
Movement on Bruinsburg, Mississippi and turning Grand Gulf April 25–39.
Moved to mouth of White River, Ark., September 3–8 and duty there until October 18.