Dale Swanson couldn't help himself.
When the lifetime Minnesota resident and Prior Lake author came across a reference to the so-called "thirty-ninth man" while working on another project, he had to find out more.
For six years, Swanson searched records at the Minnesota Historical Society, interviewed sources and read period biographies, meticulously combing written materials and living experts for information about Tatemina, or Round Wind, the Dakota man spared from the infamous gallows of Dec. 26, 1862, with an eleventh-hour pardon.
What he found was at once gratifying and frustratingly incomplete — and compelling enough to form the foundation of "The Thirty-Ninth Man," a work of historical fiction released in June by North Star Press of St. Cloud.
"When I set out to write, I had no outline, nothing specific in mind," said Swanson, who is hosting a book discussion on Thursday at the Henderson library and another on Oct. 20 at the Arlington Public Library. "The only thing I had was the 39th man."
By accounts, Tatemina was short, squat and powerful with piercing eyes. The brother to Big Thunder (Little Crow IV) was also said to have a penchant for stealth on the battlefield and a master's skill with a bow.
Court transcripts show that, like many of the 303 Dakota sentenced to death by the mock courts held in Mankato to exact revenge for the actions of the U.S.-Dakota War, Tatemina was convicted on flimsy, if perhaps completely false, testimony. In Tatemina's case, two boys accused him of attacking and killing their mother — though, an investigation proved that Tatemina was not in the area at the time and, in fact, tried to protect white families during the war.
Swanson relays as much in his book, which adheres strictly to historical fact though its narrative is fictional.