Celebrity golf tournament

from the late 1950's or early 1960s 

Was held somewhere in the Coachella Valley CA = Palm Springs/Palm Desert/Rancho Mirage

Guy Madison signature has been identified, he was the actor who played in the western series = The Adventures of Wild Bill Hickok from 1951 – 1958 

plus there are 6 more unidentified signatures. Any help is appreciated.

I try to leave feedback the day when USPS tracking shows the package is. 

Out for Delivery.

In hopes of a safe and secure delivery, while leaving the porch pirate's empty handed.