I've read a few times that Dempsey threw his first fight against Fireman Jim Flynn, but there is no mention of it on your report.
1917-02-13 Fireman Jim Flynn 36-19-17
Murray, Utah, United States L KO 1 15
referee: Frank Armstrong
With Dempsey still bent over and walking toward Flynn, both forearms and gloves covering his face, Flynn rushed again. The Pueblo battler gave Dempsey's head a quick shove toward his right and sent a short right hand hook through Dempsey's guard and straight to the point of the chin. (Salt Lake Telegram)
Dempsey was down 10 seconds in to the bout, and he remained on his back for twenty seconds.