" I can't remmber where we were exceptthat it was not Atlantic City, because that's where Papa and Chick were going "
is a city in Atlantic County, New Jersey. It is famous for its boardwalk, casino gambling, sandy beaches, shopping centers, view of the Atlantic Ocean, and as the inspiration for the board game Monopoly
" 'No! Uncle! I give' wailed Arty "
I The United States, 'uncle' is used to indicate submission, usually in sports or children's games, similar to the British 'Mercy'