Did Lincoln not want to attend the theater that night?

[RJNorton]

I apologize for my aging memory, but I think the original source for this story is The Little Bugler: The True Story Of A Twelve Year Old Boy In The Civil War . Just as vague in my memory is that I think I once read that a historian looked into that book and found it more fiction than fact. I certainly stand to be corrected if someone knows. I think Joe mentioned the story might be in Twenty Days, too.