1. Newberry Library, VAULT box Ayer MS 1226 DS ID: DS17663 Title: Ordinances Author: Spain and Charles V Place: Valladolid and Spain Date: 1543 May 26.
2. Newberry Library, VAULT Ayer MS 1121 DS ID: DS18283 Title: Register Author: New Spain and Luis de Velasco Date: 1562 or 1563