. $150,000, 1100 acres of prime real estate and 16,000 to montalban inc's of the potomac river. the great irony is when custoi l lee signed the deed to the government, signing the title on the other side, the secretary of war, robert todd lincoln, so that you had son of lee and the son of lincoln agreeing on something. that was the beginning of the reunion. >> we are going to walk over here to the first tomb of the unknown soldier is. >> one of the great traditions of arlington is honoring the unknown soldiers lost in war. the first instance of that came after the civil war when quartermaster general montgomery meigs sent recovery teams into the battlefield with a 30 mile radius of washington to recover unknown soldiers from that war. they brought them here to this part of arlington. after the war, these teams recovered the dead from chancellorsville and other great battlefields. montgomery meigs had a huge pit dug here and had then buried in a mass grave in 1866. two thousand 1 hundred eleven unknowns buried here at arlington. this is the end of mrs. lee's garden. another insta