IV, a little joke on p. 310...and in reality

[Mark Kohut]

"Burke..semiretired, content to go eighteen low-stakes holes at the Wilshire Country Club (even nine if he could find a member who was half-Jewish)"...

>From "Before the Storm", p. 21. "Barry Goldwater delighted in, and journalists delighted in repeating, his corny put-downs of anti-Semites. Why couldn't he play nine holes, he was supposed to have responded when kicked off a gold course, since he was only half-Jewish?"  

Perhaps it is an oft-repeated urban joke legend?