Went during Gettysburg Christmas Festival, they had the house open with various bits of information and activities.
November 2023
Not much to see here - the house Lee used as his HQ. But the thing to look at IMHO is this place as a last stand on day 1 of Gettysburg by the union. The views to the North and West give a great picture of the battle.
July 2023
Informative site with a well spoken, educated and pleasant docent
Managed by the American Battlefield Trust and located on the Chambersburg Pike on top of Seminary Ridge, this 4-acre property was the headquarters site of Gen. Robert E. Lee during the Battle of Gettysburg. Today, visitors to the site can enjoy the self-guided interpretive trail, with five signs explaining the dramatic events at the headquarters from July 1-3, 1863. The Mary Thompson house itself has been carefully restored to its wartime appearance and will be open to the public on special occasions.