http://digitalcollections.smu.edu/cdm/ref/collection/mex/id/577 http://digitalcollections.smu.edu/cdm/ref/collection/mex/id/578 http://digitalcollections.smu.edu/cdm/ref/collection/eaa/id/3 http://digitalcollections.smu.edu/cdm/ref/collection/eaa/id/711