Sorry, Roger, but it's not Speed. I think I will call it. It was Robert Todd Lincoln. Lincoln was writing John Hay explaining why he gave Tarbell the photo that was used in her series on Abraham Lincoln in McClure's. I got the letter from Jason Emerson who discussed it in his blog on his website.
Best
Rob
Abraham Lincoln is the only man, dead or alive, with whom I could have spent five years without one hour of boredom.
--Ida M. Tarbell
I want the respect of intelligent men, but I will choose for myself the intelligent.