From a USGA article:
"Coupled with his golf successes was the fact that Neville was a real estate salesman for Morse’s firm, the Pacific Improvement Company. So although Morse in 1916 had asked at least six other persons to draw up designs for the new course, he saw Neville as the logical choice for the task.
If Neville harbored any fears when he began his Pebble Beach design, they were well hidden. He asked Douglas Grant, a wealthy sportsman and fellow California Amateur champion, to help him, especially with the bunkering. The two golfers walked the course site for weeks before they settled on their final design.
“It was all there in plain sight,” Neville told journalist Herbert Warren Wind.
Neville sought to place as many holes as possible beside the ocean. This was done by creating a figure-8 routing, a concept that remains unchanged despite course alterations made over the years by such names as H. Chandler Egan, Frank (Sandy) Tatum and Jack Nicklaus. Originally, the fourth, sixth through 10th and 17th and 18th holes abutted the ocean. The total went to nine holes when land was acquired from a private party to rebuild the par-3 fifth hole so it, too, could overlook water. It debuted in 1998."
Any idea who the other 6 names were? Have any other PB routings ever been uncovered? Was Grant ever involved in any other design projects?