The Golden Age of Golf Design,by Shackelford - under the William Flynn section check out old photos of Shinnecock and read up on William Flynn.
Also the Evangelist of Golf by George Bahto has some of the original course info, designed by Macdonald and Raynor. Some holes form original design still exist in the Flynn redesign in 1931.
Also the Golf Clubs of the MGA by Bill Quirin.
Have fun this summer, your working for Jack, one of the best Pros in the business, you will learn a lot.