24th Regiment, Ohio Infantry
The 24th Regiment, Ohio Infantry mustered in May 29, to June 17, 1861 at Camps Chase and Jackson. They were mustered out June 17-24, 1864, at Chattanooga, Tennessee. 
For more information on the history of 24th Ohio Infantry see the following:
- Larry Stevens' Ohio in the Civil War, 24th Ohio Infantry
- The Civil War Archive section, 24th Regiment Infantry, (accessed 30 August 2012).
- The Wikipedia article, 24th Ohio Infantry (accessed 12 October 2011)
Companies in this Regiment with the Counties of Origin
Men often enlisted in a company recruited in the counties where they lived though not always. After many battles, companies might be combined because so many men were killed or wounded. However if you are unsure which company your ancestor was in, try the company recruited in his county first.
Company G - see Roster
The above Company rosters are from Official Roster of the Soldiers of the State of Ohio in the War of the Rebellion, 1861-1866, vol. III, 21st-36th Regiments-Infantry, (Cincinnati, Ohio Valley Pub., 1886), pages 140-165.
- 24th Ohio Regiment Infantry, Civil War Index, which includes history, battles, and roster with name, rank, age, date entered service, period of service and remarks.
- Beginning United States Civil War Research gives steps for finding information about a Civil War soldier. It covers the major records that should be used. Additional records are described in ‘Ohio in the Civil War’ and ‘United States Civil War, 1861 to 1865’ (see below).
- National Park Service, The Civil War Soldiers and Sailors System, is searchable by soldier's name and state. It contains basic facts about soldiers on both sides of the Civil War, a list of regiments, descriptions of significant battles, sources of the information, and suggestions for where to find additional information.
- Ohio in the Civil War describes many Confederate and Union sources, specifically for Ohio, and how to find them.. These include compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.
- United States Civil War, 1861 to 1865 describes and explains United States and Confederate States records, rather than state records, and how to find them. These include veterans’ censuses, compiled service records, pension records, rosters, cemetery records, Internet databases, published books, etc.
- National Park Service, The Civil War Soldiers and Sailors System, (accessed 6 December 2010).
- William Brothers, History of Franklin and Pickaway Counties, Ohio (Indiana: Unigraphic, 1974). p. 115.
- History of Columbiana County, Ohio: with illustrations and biographical sketches of some of its prominent men and pioneers (Philadelphia: D.W. Ensign, 1879).
- History of Adams County, page 340 http://archive.org/stream/ahistoryadamsco00stivgoog#page/n408/mode/2up
- Lewis Cass Aldrich, History of Erie County, Ohio: with illus. and biographical sketches of some of its prominent men and pioneers (D. Mason, 1889) p. 122.
- fckLRHisstory of trumbull and Mahoning ounties page 128
-  History of Cuyahoga County Ohiopage 101
-  History of Highland County Ohio page 141
- Norman Hill, comp., History of Coshocton County, Ohio: its past and present, 1740-1881, page 328. Internet Archive.