Jackie "Husky" Bellingham (Hanes) (Cobb) is Jackie and Joe Cobb's baby brother, who seems to cry a lot. He was discovered crying once by Officer Mac on the front stoop of a brownstone apartment in the Tenement District and entertained until he started laughing. He's also in the audience of Mickey Daniels and Billy Lord's amateur movie. He is supposed to be looked after by Joe, who instead rigs a toy that due to the wind, rocks back and forth on Bellingham's baby carriage, allowing Joe to ride with the gang in an engineless car.
It's not known if this crying baby brother is the same crying baby brother Joe has in Noisy Noises, but it's possible this is an entirely different baby brother.
Husky was played by child actor Jackie Hanes.