The Spielberg movie? A soldier? A politician? Do I understand correctly he was in his early 20s during Lincoln's presidency?
(I am brooding to think of anyone occurring in the Lincoln movie who met Lincoln but Mary - in real life - never.)
Yes, he was in his late teens and early 20s during the Civil War. He met Abraham frequently but not Mary. Yes, I am referring to the Spielberg movie. He was not a politician. He was not a soldier who fought in battles, but he provided an important service to the military.
Excellent guess, Michael, but kudos to Eva! Yes, it is David Homer Bates, author of Lincoln in the Telegraph Office. Bates worked in the War Department as part of the Military Telegraph Corps of the Army. He saw Lincoln almost daily as the President made constant visits to the War Department.
Andy Thomas' painting entitled The Republican Club currently hangs in the White House. He has also painted The Democratic Club. I happened to see on TV that Mr. Thomas told the interviewer who the woman is that is walking toward the Presidents' table in both paintings. This is for people who did not see the interview: who is the woman?