Name: Jonathan S Lepper
Enlistment Age: 41
Birth Date: abt 1820
Birth Place: Oppenheim, New York
Enlistment Date: 25 Jun 1861
Enlistment Place: Caseyville, Illinois
Enlistment Rank: Private
Muster Date: 25 Jun 1861
Muster Place: Illinois
Muster Company: B
Muster Regiment: 22nd Infantry
Muster Regiment Type: Infantry
Muster Information: Enlisted
Muster Out Date: 7 Jul 1864
Muster Out Place: Springfield, Illinois
Muster Out Information: Mustered Out
Side of War: Union
Survived War?: Yes
Complexion: Light
Eye Color: Blue
Hair Color: Gray
Height: 5 ft, 7 inches
Residence Place: Madison County, Illinois
Occupation: Sailor
Title: Illinois: Roster of Officers and Enlisted Men; Illinois State Archives @ http://www.ilsos.gov/isaveterans/civilmustersrch.jsp

SOURCE- U.S., Civil War Soldier Records and Profiles, 1861-1865

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Name: Jonathan S Lepper
Rank: Private
Company: B
Unit: 22nd Illinois Infantry
Height: 5' '7
Hair: GRAY
Eyes: BLUE
Complexion: LIGHT
Marital Status: Single
Occupation: Sailor
Birth Date: Abt 1820
Birth Place: Openham, Montgomery CO, NY
War: Civil War
War Years: 1861-1865
Service Entry Age: 41
Service Entry Date: 25 Jun 1861
Service Entry Place: Caseyville, IL
Joined By Whom: CPT SEATON
Period: 3 YRS
Muster In Date: 25 Jun 1861
Muster In Place: Springfield, IL
Muster Out Date: 7 Jul 1864
Muster Out Place: Springfield, IL
Muster Out By Whom: LT SUMNER
Residence Place: Madison CO, IL
Record Source: Illinois Civil War Muster and Descriptive Rolls

SOURCE- Illinois, U.S., Databases of Illinois Veterans Index, 1775-1995

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Name: Jonathan L. Lepper
Side: Union
Regiment State/Origin: Illinois
Regiment: 22nd Regiment, Illinois Infantry
Company: B
Rank In: Private
Rank Out: Private
Film Number: M539 roll 52

SOURCE- U.S., Civil War Soldiers, 1861-1865
NOTE- S or L ?

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Regiment: 22nd Infantry Regiment Illinois
Date of Organization: 25 Jun 1861
Muster Date: 7 Jul 1864
Regiment State: Illinois
Regiment Type: Infantry
Regiment Number: 22nd
Officers Killed or Mortally Wounded: 2
Officers Died of Disease or Accident: 2
Enlisted Killed or Mortally Wounded: 145
Enlisted Died of Disease or Accident: 101
Battles: Fought on 19 Aug 1861 at Charleston, MO. Fought on 7 Nov 1861 at Belmont, MO. Fought on 9 May 1862 at Farmington, MS. Fought on 8 Sep 1862. Fought on 2 Oct 1862. Fought on 30 Dec 1862 at Stones River, TN. Fought on 31 Dec 1862 at Stones River, TN. Fought on 19 Sep 1863 at Chickamauga, GA. Fought on 20 Sep 1863 at Chickamauga, GA. Fought on 25 Nov 1863 at Missionary Ridge, TN. Fought on 20 Jan 1864. Fought on 14 May 1864 at Resaca, GA. Fought on 28 May 1864 at New Hope Church, GA.

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Likely related, being a NY Lepper. But I have no other information on him other than posted above. Including census enumerations. KG