Akchewly it's Duke singular. The Dukes plural were the family of the Mopar car guys and the short/shorts actress Catherine Bach.  

Didn't need Google, I'm from that vintage lol.  

Pre internet, the best one could do was a wall poster - a la pin-up "sex symbols" like Ms Bach, Farah Fawcett, etc. Daisy Dukes and the iconic red one piece swimsuit adorned many a bedroom wall of 70s male adolescents.

FWIW  - I had Raquel Welch from 1, 000,000 years BC on my wall...

... good times