Civil War sideburns

As you may see, I removed the outdated picture from my profile. Recently I cut my hair and grew a beard. And as of Monday, I trimmed the beard in a Victorian manner. Because of the look, I am now know as Sir Willups Brightslymoore III at work. Now, I am unsure to the exact name of this beard style. I believe it is either Mutton Chops, or the Burnside. I'm just curious. So if anyone know the acutal name of this style, it is greatly appreciated.