Although I don't think it would help, no Googling please.
Of whom was Tarbell speaking when she wrote "It grows on me as I think of it, which I take it is as good a proof as one could have of the sincerity, intelligence, deep conviction in your work."
First clue. She is not writing about a historian.
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.