Ida and William McKinley took the red carnation as their good luck symbol.
They had arranged a sign between them, when in a crowd, or separated, he would touch the flower in his lapel and then gesture hes hand toward her.
The gesture meant, "I love you, Ida."
On the day of his assassination, he gave his carnation to a little girl who was crying.
His luck had left him, but her lover never would.