7th Regiment, Pennsylvania Infantry (3 months, 1861)
This regiment was organized at Harrisburg April 23, 1861. It mustered out July 29, 1861. 
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.
The Seventh Regiment was recruited in:
Company A - many men from Pittsburg, Allegheny County
Company B - many men from Allegheny, Allegheny County
Company C - many men from Fredonia, Berks County
Company D - many men from Pleasantville, Berks County
Company E - many men from Allegheny, Allegheny County
Company F - many men from Pittsburg, Allegheny County
Company G - many men from Reading, Berks County
Company H - many men from Boalsburg, Centre County
Company I - many men from Lewistown, Mifflin County
Company K - many men from Pittsburg, Allegheny County
- 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 ‘Pennsylvania 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.
- Pennsylvania in the Civil War describes many sources, specifically for Pennsylvania, 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.