SDA membership and related information can be obtained from the SDA secretary-treasurer:
Johnelle Sparks, SDA Secretary-Treasurer
Department of Demography
University of Texas - San Antonio
501 W. Cesar Chavez Blvd
San Antonio TX USA
Phone: (210) 458-3141
Fax : (210) 458-3164
Email: sectreas@sda-demography.org