Maryland in the Civil War
Maryland was a border state between the Union and the Confederacy. Nearly 85,000 men signed up to join the military. Though it was a slave state, only a fourth of them joined Confederate units. The majority joined Union forces.
For more information, see the Wikipedia article, Maryland in the American Civil War.
Maryland Military Units
Most units were numbered, however, some were named. See the table below for lists of the regiments, battalions, batteries, and unassigned companies.
The information in the lists of Maryland Military Units comes from the Civil War Soldiers and Sailors web site. This web site also can be searched by the name of a soldier.
Guides to Records
Guide to Civil War Sources by the Maryland Historical Society is helpful with your Civil War era research. Maryland was officially a Union state, but some men—particularly from southern Maryland—did serve in the Confederate Army. For more information about the Civil War see the Civil War page. For service records of Union soldiers, see:
- Index to Compiled Service Records of Volunteer Union Soldiers Who Served in Organizations from the State of Maryland 
- Compiled Service Records of Volunteer Union Soldiers Who Served in Organizations from the State of Maryland. 
The Family History Library has an index to Civil War pension records Family History Library films  You must order photocopies of Union pension applications from the National Archives. The state of Maryland did not offer pensions to those who served in the Confederacy.
- Civil War Pension Index Cards - An Index to Pension Applications of veterans who served in the US Army between 1861-1917 is available on FamilySearch. Each card gives the soldier’s name, application and certificate numbers, state of enlistment, and might include rank and death information. Other wars, of that time period, may be included.
Published rosters of Confederate and Union soldiers are in:
- The Maryland Line in the Confederate Army, 1861-1865 Full text on Google Books
- Marylanders in the Confederacy 
- Maryland in the Civil War 
- History and Roster of Maryland Volunteers, War of 1861-65 
- Register of the Commissioned and Warrant Officers of the Navy of the Confederate States: To January 1, 1863 
Compiled Service Records - The Compiled Service Records ($) (Footnote.com) of Maryland soldiers are available online. In the future, these records will be made available at no charge through the National Archives web site. The service records are also available at no charge at National Archives research rooms. The compiled service records consist of an envelope containing card abstracts taken from muster rolls, returns, pay vouchers, and other records. Service records may provide rank, unit, date of enlistment, length of service, age, place of birth, and date of death. For more information see Union Service and Pension Records and Confederate Service and Pension Records.
- A Memoir, Richard Snowden Andrews, Lieutenant-Colonel  Full Text is available at Google Books. This is a history from the recollections of Richard Snowden Andrews Lieutenant-Colonel Commanding the first Maryland Artillery (Andrews Battalion) Confederate States Army of the account of a fight of two guns at Sevenson's Depot near Winchester in 1863.
The Family History Library has some Maryland regimental histories. An example is Colored Volunteers of Maryland Civil War, 7th Regiment, United States Colored Troops, 1863-1866  To learn more about Maryland Confederate forces, see Confederate Military History Volume two deals only with Maryland.
- Civil War Rosters is a directory of Civil War Rosters and Muster Rolls that have been found on the internet. Some of the units may not be listed as only about 50-60% of all rosters are on the internet. Links are given for further research.
- History and Roster of Maryland Volunteers History and Roster of Maryland Volunteers War of 1861-5 Volume 1. Maintained by Maryland State Archives.
- The National Museum of Civil War Medicine located in Frederick, Maryland is a repository of exhibits and artifacts devoted to effectively weave the narrative of suffering soldiers, caregivers, their families and the dramatic and innovative developments in medical treatment.
- Roster of Maryland Volunteers, War of 1861–1865 by Lineages.com is searchable by last name. This is a roster of 49,038 Maryland troops who fought for the Union during the Civil War.
Site provides the following information:
- National Park Service, The Civil War Soldiers and Sailors System (accessed January 2011).
- Index to Compiled Service Records of Volunteer Union Soldiers Who Served in Organizations from the State of Maryland. On 13 Family History Library films beginning with 881522
- Compiled Service Records of Volunteer Union Soldiers Who Served in Organizations from the State of Maryland. On 238 Family History Library films beginning with 1477976, NARA M0384
- Compiled Service Records of Confederate Soldiers Who Served in Organizations from the State of Maryland. (On 22 FHL films beginning with 1292663, NARA M0321
- The index is on Family History Library films 821887-8
- 540757-541300, NARA T0288)
- Goldsborough, William W. The Maryland Line in the Confederate Army, 1861-1865. 1900. Reprint, Gaithersburg, Maryland: Olde Soldier Books, 1987. Family History Library book 975.2 M2g
- Hartzler, Daniel D. Marylanders in the Confederacy. Silver Spring, Maryland: Family Line Publications, 1986. Family History Library book 975.2 M28h
- Huntsberry, Thomas V., and Joanne M. Huntsberry. Maryland in the Civil War. Two Volumes. Edgemere, Maryland: J. Mart Publishers, 1985. (Family History Library book 975.2 M2hm
- Wilmer, L. Allison. History and Roster of Maryland Volunteers, War of 1861-65. Two Volumes. 1898-1899. Reprint, Silver Spring, Maryland: Family Line, 1987. Family History Library book 975.2 M2wi; film 1466002; fiche 6082446
- Register of the Commissioned and Warrant Officers of the Navy of the Confederate States: To January 1, 1863. Family History Library book 975 M3r; film 1035530 item 8).
- Andrews, Mary Catherine (Lee) and Tunstall Smith. 'A Memoir, Richard Snowden Andrews, Lieutenant-Colonel Baltimore, Maryland: The Sun Job Printing Office 1930.
- Callum, Agnes Kane. Colored Volunteers of Maryland Civil War, 7th Regiment, United States Colored Troops, 1863-1866. Baltimore, Maryland: Mullac Publishers, 1990. Family History Library book 975.2 M2ca
- Confederate Military History. Extended ed., 17 vols. Wilmington, North Carolina: Broadfoot Publishing Company, 1987-1988. Family History Library book 975 M2e