3rd Regiment, Iowa Infantry
This Unit was organized at Keokuk and mustered in June 8, 1861. Veterans consolidated to a Battalion of three Companies July, 1864.
Transferred to 2nd Iowa Infantry as Companies "A," "F" and "I," November 4, 1864. 
For more information on the history of this unit, see:
- The Civil War Archive section, 3rd Regiment Infantry, (accessed 21 June 2012).
- The Wikipedia article, 3rd Iowa Volunteer Infantry Regiment, (accessed 21 June 2012).
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 A - enrolled in Dubuque County
Company B - enrolled in Marion County
Company C - enrolled in Clayton County
Company D - enrolled in Winneshiek County
Company E - enrolled in Story County
Company F - enrolled in Fayette County
Company G - enrolled in Warren County
Company H - enrolled in Mahaska County
Company I - enrolled in Butler County
Company K - enrolled in Blackhawk County
Information about the companies and their counties comes from Iowa. Adjutant General's Office, Report of the Adjutant General and Acting Quartermaster General of the State of Iowa, (Des Moines [Iowa]: F.W. Palmer, 1863), pages 88-128. FHL book 977.7 M25ag.
Rosters are also listed in this book.
- 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 ‘Iowa 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.
- Iowa in the Civil War describes many Confederate and Union sources, specifically for Iowa, 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).