Dr. Ray Lyman Wilbur, who has just completed his tenth year as president of Stanford University, will be the honor guest at a dinner to be given tonight by the trustees of the university. The affair will be held at the Pacific Union Club. Dr. Wil bur was inaugurated as president of Stanford on January 22, 1916, coming to the office from his position as dean of the medical school. He is the first graduate of the university to become its directing head. In addition to his academic duties, Dr. Wilbur is a phy sician of national repute and has served two terms as president of the American Medical Association.