New Horizons Genealogy

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St Clair County Illinois Military Records

St Clair County Illinois Military Records for your genealogy and family history research.

Honoring our military servicemen and women who served or are serving in the Army, Navy, Air Force, Marines and Coast Guard of our United States military.

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Military Pension Records

Revolutionary War Military Records

Civil War Military Records

Illinois Military Units in the Civil War

Civil War Companies organized in St. Clair County, Illinois


  • 2nd Regiment -- Battery E
  • Springfield Light Battery


  • 2nd Regiment -- Company E
  • 5th Regiment -- Company H
  • 10th Regiment -- Company E
  • 16th Regiment -- Companies F, G


  • 9th Regiment (3 months) -- Companies A, B, C, D, E
  • 9th Regiment (3 years) -- Companies B, C, D, E, F
  • 22nd Regiment --Companies C, K
  • 32nd Regiment -- Company G
  • 43rd Regiment -- Companies A, B, G, H
  • 49th Regiment -- Company E
  • 59th Regiment -- Company E
  • 70th Regiment --Company F
  • 80th Regiment --Company C
  • 82nd Regiment -- Companies F, G
  • 115th Regiment --Company K
  • 117th Regiment -- Companies C, H, I, K
  • 142nd Regiment -- Company H
  • 149th Regiment -- Companies B, C, D, H, I, K
  • 155th Regiment -- Company K
  • 29th Regiment U.S. Colored -- Company E

Grand Army of the Republic

The Grand Army of the Republic (GAR) was a fraternal organization composed of veterans of the Union Army, US Navy, Marines and Revenue Cutter Service who served in the American Civil War. Below are the Grand Army of the Republic rosters for St. Clair County, Illinois:

Korean War Military Records

Military Forts, Camps or Posts located in St. Clair County

  • Camp Bissell
  • Fort Chambers
  • Nat Hill's Fort