Hudson Valley News Executive Editor Jim Langan said that the guest list wasn't full of just high-profile celebrities.
It will be "a little less high profile name and more of ... people who are actually friends with Marc and Chelsea, but there are still going to be some A-listers here," he said.
Hotels and wedding staff have reportedly been instructed to act accordingly, ushering the VIP guests from a nearby helipad to their rooms through discrete entrances, like kitchen doors, to avoid the media.
"There is a lot of security to protect the protectees, the former president and the secretary of state, so there will be requirements to follow," said Anita McBride, social secretary under President George W. Bush and chief of staff to first lady Laura Bush. "It takes some real coordination."
Despite the dignitaries and high-profile guests expected to be in attendance, the bride and groom are the only VIPs.
"At the end of the day, it's what the bride wants," McBride said. "The bride is your No. 1 dignitary."
The Associated Press contributed to this report