From SCOUTING, May, 1928.
When the Silver Buffalo Award began in 1926, there were 22 awards issued initially. These included all of the men we list as founders, with the first going to Baden Powell. Interestingly, the second is listed as being given to the "Unknown Scout" of the lost in London story. It was then decided to issue seven a year going forward, five to Scouting leaders and two to youth leaders outside of Scouting. In 1928, the seven awarded included, as number 30 overall, "The Tomb of the Unknown Soldier". This was followed with Colonel Charles A. Lindbergh.
I am challenged to see if any other special awards have been made to "monuments in honor of individual(s)". Will have to see if I can find a list of all the recipients to date.