But did you know Robert Lincoln was a civil war veteran and is buried in Arlington National Cemetary?
http://home.att.net/~rjnorton/Lincoln66.html
Robert Todd Lincoln, Abraham and Mary Todd's first child, was born August 1, 1843. In 1859 Robert applied to Harvard, but he failed its entrance examinations. It was apparent his education in Springfield was quite deficient.
After his year at Exeter, Robert was accepted at Harvard and became a member of the Class of 1864. Robert spent the next four years at Harvard. He saw his family on vacations. After graduation, he enrolled at Harvard Law School.
Robert spent only a short period of time at the Harvard Law School. It isn't exactly clear why he left. By the end of the year he was living at the White House. Early in 1865 (after his father had written Ulysses S. Grant a letter) Robert joined General Grant's staff as a captain. Captain Lincoln's main duty as an army officer was that of escorting visitors to various locations. Additionally, he was present at Appomattox when Robert E. Lee surrendered to Grant.
http://showcase.netins.net/web/creative/lincoln/sites/harvard.htm
Robert left law school after his first semester and joined the staff of General Ulysses Grant as a captain. While in college, he was under public pressure to enter the Union Army, but apparently also had a genuine desire to enlist. His Aunt Emilie recalled overhearing his mother tell President Lincoln, "I know that Robert's plea to go into the Army is manly and noble and I want him to go, but oh! I am so frightened he may never come back to us!"
On January 19, 1865, President Lincoln wrote to Grant, asking him to find a safe staff appointment for Robert: "My son, now in his twenty-second year, having graduated at Harvard, wishes to see something of the war before it ends. I do not wish to put him in the ranks, not yet to give him a commission, to which those who have already served long, are better entitled, and better qualified to hold."