Today
Though the obsessive, partisan animosity that gripped much of the country during the trial and subsequent attempts to overturn the verdict have been almost entirely forgotten, the effect of the meticulous casework undertaken by Porter and his allies can be seen at Manassas National Battlefield Park, the site of the Second Battle of Bull Run. When construction of the Steven F. Udvar-Hazy Center, an annex to the Smithsonian Institution's National Air and Space Museum, disturbed wetlands on the site, the Smithsonian and its funders paid to restore portions of the Battlefield Park that had been disrupted by construction during the 1980s by John T. "Til" Hazel to their 1862 conditions. Using Porter's extremely detailed maps, they were able to restore the grounds to within one inch of their previous form and replant to create the most historically accurate battlefield in the park system.
Porter's papers are available through the Library of Congress.
Read more about this topic: Court-martial Of Fitz John Porter