1st Regiment, Delaware Infantry (Union)
The 1st Regiment, Delaware Infantry was organized at Wilmington, Delaware, September 10 to October 19, 1861 and mustered out July 12, 1865. 
For more information on the history of this regiment:
- Wikipedia article,1st Regiment Delaware Volunteer Infantry, (accessed 14 March 2012).
- Civil War Archive section, 1st Regiment Infantry "Crazy Delawares" (3 years), (accessed 14 March 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 - Organized in Wilmington, New Castle, County
- Company B - Organized in Wilmington, New Castle, County
- Company C - Organized in Wilmington, New Castle, County
- Company D - Organized in Camden, Kent County
- Company E
- Company F
- Company G - Organized in Georgetown, Sussex County
- Company H - Organized in Dover, Kent County
- Company I
- Company K
- 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 ‘Delaware 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.
- Delaware in the Civil War describes many Confederate and Union sources, specifically for Delaware, 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.
- Seville, William P. History of the First Regiment, Delaware Volunteers : from the commencement of the "three months' service" to the final muster-out at the close of the rebellion. (Wilmington, Delaware : Historical Society of Delaware, 1884), FHL book 975.1 M2s and ( Bethesda, Maryland : University Publications of America, c1992), FHL fiche 6083412
- National Park Service, The Civil War Soldiers and Sailors System, (accessed 15 January 2011).