DECEPTIVE FOOTING here. Beware!
Robert Lincoln, son of Abraham Lincoln, is the only man in U.S. history known to have witnessed the assassinations of three different presidents, his father, James Garfield, and William McKinley. After he saw anarchist Leon Czolgosz shoot McKinley, he vowed he would never again appear in public with an incumbent president.
Tread carefully when doing this cache. Be safe. Have fun!