From Approaches to the Great Settlement (1918).

From The Comedies, Histories, Tragedies, and Poems of William Shakspere, 1851.

Here's the "Aesthetic Quadrille" from Bluebeard or Fickle Fatima and the Fatal Key, An Operatic Burlesque Extravaganza in 4 Acts, written and illustrated by Edmund Arthur Ponsonby Hobday, 1888.

From The Bab Ballads, written and illustrated by William Schwenck Gilbert, 1898.

Here's a precursor to the "dancing pigs" of computer security: "Given a choice between dancing pigs and security, users will pick dancing pigs every time" (Gary McGraw and Edward Felten, Securing Java, 1999).  From North Adams Normal School's Normalogue yearbook, 1914.  (For some unbelievably weird yearbook imagery, see our How to Hoodoo Hack a Yearbook.)