At the time I created this link, the Gettysburg Magazine article Anderson's Brigade in the Wheatfield at Gettysburg, July 1863 was online, but it has since been removed.  I have a copy but rather fear that it would be a copyright violation to post the entire article on this web site.  And since the author is a judge, I particularly would not want to do that... <G>  It can be read in Gettysburg Magazine, Issue Number 14 (January 1996), pages 64-76.