Lincoln's Gamble: The Tumultuous Six Months that Gave America the Emancipation

[L Verge]

I think the point that Eva was making is that Florence Stanley is a spurious individual that experts in the field cannot verify as having been in contact with Robert Lincoln concerning this matter. Instead of taking her letter as gospel, Eva wants to know what other sources have found similar evidence that Mr. Lincoln faltered somewhat before signing the Proclamation.