Others, with more proof, connect them with that great Toltec race which occupied Central America and Mexico, before they were driven out by the ruder and more warlike Aztecs.
"The Nation in a Nutshell"
George Makepeace Towle
The unknown people by whom they were constructed, judging by the form of several skulls dug out of the burial-places, were of the Mexican or Toltec race.
"The Antiquity of Man"
Charles Lyell
It is even in doubt who they were, but, presumably, they were of the Aztec or Toltec race; or, perhaps, of some civilization even more remote.
"Arizona Sketches"
Joseph A. Munk