99th Illinois Infantry Regiment
Three Year Service
August 23, 1862 - July 31, 1865
Consolidated November 25, 1864

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Assigned to:

• Department of the Gulf: August 1863 - December 1864
• Military Division West Mississippi: December 1864 - July 1865

Battles/Campaigns Engaged in:
Operations against Vicksburg [Port Gibson, Champion's Hill, Big Black River, Siege of Vicksburg], Ft. Blakely

Adjutant General's Regiment History

Frederick Dyer's Regimental History

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Original Organization
99th Infantry Field & Staff	Non-Commissioned Staff	Unassigned Recruits
The Original Regiment did not have a Band or Unassigned/Substitute/Drafted Recruits

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Link to Roster	Link to County of Origin
Company A Company B Company C Company D Company E Company F Company G Company H Company I Company K	Pike County Pike County Pike County Pike County Pike County Pike County Pike County Pike County Pike County Pike County

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99th Illinois (Consolidated) Infantry Regiment  Consolidated into Battalion of 5 Companies, November 25, 1864
Consolidated Organization
99th Infantry Field & Staff	Non-Commissioned Staff	Unassigned Recruits
The Consolidated Regiment did not have a Band or Unassigned/Substitute/Drafted Recruits

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Link to Roster

Company A (Consolidated) Company B (Consolidated) Company C (Consolidated) Company D (Consolidated) Company E (Consolidated)

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