Dan,
You might want to look at my now ancient MA thesis:
Ronald V. May
1975 "Mexican Majolica In Northern New Spain: A Model For Interpreting
Ceramics Change." A Thesis Presented to the Faculty of San Diego State University
In Partial Fulfillment of the Requirements for the Degree Master of Arts in
Anthropology. February 1975.
The University of South Caroline has reproduced it and Coyote Press in
California also sells copies. Of course, it is probably also available on
Interlibrary Loan.
Ron May
Legacy 106, Inc.