I am looking for civil war artwork and clip art that preferably is in
the public domain.  The artwork can be graphically generated or a
painting.  I have searced for hours on Google but have not found what
I'm looking for.  The following link will take you to a site that has
links that I have explored extensively already. 
http://www.cwc.lsu.edu/cwc/links/links3.htm#Images

I'm making a product that I need civil war art on the front of the
packaging.  The type of work I'm looking for is exactly like the
painting, With a Rebel Yell, by Mort Kuntsler
(http://www.americanmastersgallery.com/RebelYell.html).

I need various scenes like this that I can incorporate into different
packaging.  I would prefer the public domain, but will also take links
to sites that might license.  I also need good clip art for my website
(already visited civilwarclipart.com)

Thanks!

Have you searched images.google.com for "civil war"?
 
jbf777-ga

Also try these keywords at images.google.com:

"civil war" battle

I found three promising sites: 
 
This site has a very nice collection of PD artwork. I especially liked
the Uniforms page.
Civil War Clipart Gallery 
http://www.jewish-history.com/Clipartgallery/clipart.htm 
 
This company offers a CD of Civil War images for a low price. They
have many other Civil War images and imply that they are willing to
license them.
Heritage Photographs 
http://www.heritagephotographs.com/civwargrapcd.html 
$39.95 
 
The Library of Congress has a large collection of photos, all of which
are public domain, although not available online.
The Selected Civil War Photographs Collection 
Library of Congress 
http://memory.loc.gov/ammem/cwphtml/cwphome.html 
 
Google search strategy: 
"civil war" graphics "public domain" 
 
Best regards, 
 
- Hammer