Their talk page is at User talk:Canoe1967. As you are the subject of that photo, it cannot be "own work", as you did nor create the image yourself (unless you used a delayed shutter release). Usually a photographer retains the copyright unless it was a "work for hire" or the copyright was assigned to you by the photographer some other way. The best course of action is to provide evidence that you own the copyright following the process set out WP:IOWN.