http://books.google.com/books?id=cDIBAAAAQAAJ&pg=PA199&lpg=PA199&dq=Fort+Berry&source=web&ots=0yRUzfQkGr&sig=5fQXQpkqfQwvj-XNSbCn-puHL2g&hl=en&sa=X&oi=book_result&resnum=3&ct=result

"The new fort in progress at the Corbett house, between Forts Richardson and Barnard, will be called Fort Berry, after the late Major General H. G. Berry, who was killed at the battle of Chancelorsville, Va., May 2, 1863."

http://www.arlingtonhistoricalsociety.org/learn/sites_properties/military_use.html

http://maps.google.com/maps?q=Glebe+Road+at+South+17th+Street+and+Walter+Reed+Drive,+Arlington,+Virginia&spn=0.009016,0.019610&hl=en