Proper noun
Dufner (plural Dufners)
A surname from German.
Connie Dufner is a Dallas freelance writer. Source: Internet
Defending PGA champion Jason Dufner and a recovering Tiger Woods will headline the field at Valhalla, which will feature recently rebuilt bentgrass greens. Source: Internet
Jason Dufner, who won the PGA Championship in 2013, is one of the featured world class pro golfers who will be taking part in the Chiang Mai Golf Classic 2014. Source: Internet
Could Jason Dufner beat me in a putting contest with a 3-wood? Source: Internet