James Kirkland, Robert Gaston, and Donald Burge discovered Utahraptor in 1991 in Grand County, Utah, within the Yellow Cat and Poison Strip members of the Cedar Mountain Formation. James Kirkland is currently Utah's state paleontologist. Mr. Kirkland is on the left in this photo below.
Robert Gaston is running a successful fossil replica business. You can find his store online here. I haven't found much at all about Donald Burge. Anyone that can share any information is welcome to help us all out!