Sorry, but i neither buy that or agree. Jews are the most liberal, accepting group on the planet. Jews will be delighted to accept any qualified member and probably hold a higher than for accepted Jews that know.
Cary, I see that you posted this quite a while back, and I just saw it, hence the long-delayed response.
In my early career as a club professional, I worked at two very private facilities within a few years of each other - one an HJC and the other a heralded WASP-ish club (not Yeamans Hall). Being a relative hayseed from the mountains of Western North Carolina, I was blissfully unaware of the stereotypes and uninformed assumptions people were likely to make in the late 90's. There were absolutely differences and quirks unique to the memberships at both facilities (I had never seen, let alone eaten, a beef tongue - nor a cheese blintz) but I can look back and state without hesitation that my experience in dealing with the respective memberships were completely different. At the WASP club, if a member never took the time to learn my name or anything about me, it was simply understood that they were my better, and I would generally only engage in service-related conversation. On the other hand, I found the Jewish club to be incredibly welcoming and most of the membership genuinely interested in getting to know the staff. In fact, getting invited into the clubhouse to eat beef tongue and blintzes (or their relative equivalent) would simply never have happened at that particular WASPY club. I was also very intrigued to learn that Robinson, especially if you are Polish, is a Jewish name...