The Jeffersonian Natural History Museum in Washington D.C. is a fictional place in the TV show 'Bones'.
A croupier deals cards for a game of Texas hold 'em. A croupier or dealer is someone appointed at a gambling table to assist in the conduct of the game, especially in the distribution of bets and payouts. Croupiers are typically employed by casinos.
Croup is a condition that develops quickly in children and is usually caused by a viral infection in the upper airways, which is localised in the throat and surrounding tissues. It's characterised by a barking cough. It's fairly uncommon and affects more boys than girls.