45th Regiment, Pennsylvania Infantry

Brief History
This regiment was organized at Camp Curtin, Harrisburg, October 21, 1861. It mustered out July 17, 1865.

For more information on the history of this unit, see:


 * The Civil War Archive section, 45th Regiment Infantry, (accessed 19 September 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.

Field and Staff Officers - See Rosters

Regimental Band - See Roster

Company A - Many men were recruited in Centre County - See Roster

Company B - Many men were recruited in Lancaster County - See Roster

Company C - Many men were recruited in Mifflin County - See Roster

Company D - Many men were recruited in Centre County - See Roster

Company E - Many men were recruited in Centre County - See Roster

Company F - Many men were recruited in Wayne County and Tioga County - See Roster

Company G - Many men were recruited in Tioga County - See Roster

Company H - Many men were recruited in Tioga County - See Roster

Company I - Many men were recruited in Tioga County - SeeRoster

Company K - Many men were recruited at Columbia, Lancaster County - See Roster

The Civil War Soldiers and Sailors database lists 3,495 men on its roster for this unit. Roster.

Other Sources

 * 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.


 * Albert, Allen D. (Allen Diehl). History of the Forty-Fifth Regiment, Pennsylvania Veteran Volunteer Infantry, 1861-1865. (Bethesda, Maryland : University Publications of America, c1992), and Williamsport, Pennsylvania : Grit Publishing, 1912),  Google Books. Internet Archives Other libraries.. and A grandfather's oft told tales of the Civil War, 1861-1865. (Bethesda, Maryland : University Publications of America, c1992),  and


 * PaRoots gives a history of this regiment, its organization and battles. It lists each company with a roster. Has additional references.


 * Ranger95 describes the history of this unit and has a roster for each company in the regiment.