Noel Bertram Gerson (1913-1988) was an American author who wrote 325 books, including several best sellers, among them two screenplay novelizations penned under the pseudonym Samuel Edwards, The Naked Maja, and 55 Days at Peking.
I don't know a lot about Theodore Roosevelt, so I certainly learned a great deal. He was a most interesting person. This style (biographical novel) makes an easy read, although it leaves a nagging thought about the truth of it all. Recommended for fans of history.