Reddit reviews Assassination Vacation

Or too much Sarah Vowell. :-)

He also joined a sex commune but nobody would have sex with him and was nicknamed "Charles GetOut".
Assassination Vacation

There's a whole chapter on the attempt to find the exact spot in the fantastic Assassination Vacation by Sarah Vowell. Vowell also explores how the Garfield Memorial is kinda super gay. http://www.amazon.com/Assassination-Vacation-Sarah-Vowell/dp/074326004X

Sarah Vowell's book "Assassination Vacation" discusses this:

"Robert Todd Lincoln, a.k.a. Jinxy McDeath, was present, or nearly so, at three assassinations–his father's, Garfield's, and McKinley's."

In the audiobook version, Robert Todd Lincoln's voice is provided by our favorite tall, red-headed talk show host.

Assassination Vacations
https://www.amazon.com/Assassination-Vacation-Sarah-Vowell/dp/074326004X

• David Herbert Donald's Lincoln is great but one of the more exhaustive & dense reads.
  
• I've heard James McPherson's book is a fantastic & more concise primer on Lincoln's life.
  
• If you're looking for an entertaining read that's not exactly a Lincoln bio, I also recommend Sarah Vowell's Assassination Vacation.
  

I can't believe this isn't the top comment, but if you are interested in this and the other presidential assasinations then please read Assassination Vacation by Sarah Vowell

I actually learned this today too, in a completely unrelated manner. I just started reading Assassination Vacation

The Curve of Binding Energy: A Journey into the Awesome and Alarming World of Theodore B. Taylor
by John McPHee

Assassination Vacation
by Sarah Vowell

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by Steven M. Johnson

Accidental Empires: How the Boys of Silicon Valley Make Their Millions, Battle Foreign Competition, and Still Can't Get a Date
by Robert X. Cringley

Tog on Interface
by Bruce Tognazzini

I learned it from Sarah Vowell's Assassination Vacation. McKinley, before he was shot, visited Honeymoon Bridge over the Niagara but made sure to only cross halfway so as to not go into canada.