Assassination Trivia

[RJNorton]

In his assassination encyclopedia, Ed Steers writes:

"As part of his plan of germ warfare, Blackburn specifically targeted President Lincoln. He purchased several elegant dress shirts, which he exposed to clothing taken from yellow fever victims. The shirts were then packed in a special valise that Blackburn tried to convince an agent to deliver to Lincoln at the White House. Afraid of the risk involved in personally delivering the valise to the White House, the agent refused."

So did Blackburn then ask another agent to deliver it???