58th Regiment, Enrolled Missouri Militia (Union)
The regiment was enrolled between 2 August 1862, and 13 August 1862. It was first ordered into service between 2 August 1862, and 13 August 1862. It was first discharged between 10 September 1862, and 13 September 1862. They were ordered into service between 1 February 1863, and 9 April 1863. They were discharged between 1 March 1863, and 14 April 1863. Company B was ordered into service on 25 July 1864. It was discharged on 12 August 1864.
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 - Captain George W. Baskins - Many men from Oregon, Holt County
Company B - 1st Lieutenant John S. Morgan - Many men from Rockport, Atchison County
Company C - Captains G. F. Smith, and Benjamin Thuma - Many men from Oregon, Holt County
Company E - Captain Samuel H. Hunter - Many men from Atchison County
Company F - Captain Charles Fanning - Rockport, Atchison County
Company G - Captain James S. Hart - Many men from Forest City, Holt County
Company H - Captain James S. McGee - Many men from Atchison County
Company I - Captain Joseph Brusha - Many men from Rockport, Atchison County
Detached Company - Captain George Steck - Rockport, Atchison County
The above information about the companies with partial rosters is found in Kenneth E. Weant's book, Civil War Records: Missouri Enrolled Militia Infantry Regiments, Volume 8 
- Beginning United States Civil War Research gives steps for finding information about a Civil War soldier or sailor. It covers the major records that should be used. Additional records are described in 'Missouri 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.
- Missouri in the Civil War describes many Confederate and Union sources, specifically for Missouri, 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.
- Kenneth E. Weant, Civil War Records:Missouri Enrolled Militia Infantry Regiments, Volume 8 (Arlington, Texas : K.E. Weant, c2010), pages #35-46. FHL book 977.8 M2wka v. 8