Lucky for everyone involved: Nathan won the hound group at the show and came very close to taking Best in Show, where he was a clear audience favorite.
The best-in-show award ultimately went to a wire fox terrier from California named Sky. (Read about Sky here.)
"He is an absolute joy to live with," says Heather. "He kisses everybody he meets and doesn't know a stranger -- he'd go home with anybody. He makes me smile every day."
Nathan demonstrated his loving personality at Westminster, where he followed up his group win with a big smooch for his handler. He also thrives on attention and loved the applause and hoots of the show, Heather says.
"The louder the crowd is," she says. "the happier he is. He loves the applause and the screaming."
Nathan is currently the only bloodhound anywhere with both a grand champion and man-trailing title, which means he's an expert at finding people, which bloodhounds were bred to do.
"It shows people he's not only a phenomenal show dog," says Heather, "but can do the job he was bred for. That's pretty cool."
"That's normal for us in a normal weekend," says Heather. "It's not normal for Westminster."
Zack, however, is no stranger to it: he was named Best Junior Handler at the 2006 show.
Heading home Wednesday morning, Heather said everyone in the pack was exhausted but very happy, and that Nathan has a great show career ahead of him.