Second, their Millennium series of chips has pictures of many presidents and other celebrities from the 1900's (Chaplin, Babe
Ruth, etc.) I'm sure that the celebrity's representatives had to give consent to be used, but are the predident's images fair game
to anybody?

The name of the Co that markets (Chaplin, Babe Ruth, etc.) should be on the chip. I can tell you Babe Ruth's name is fiercely defended by the marketing Co.
Presidents, etc. If you use a picture in clip art, there is no copyright payment.