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Office of Ethnohistorical Research

OER faculty Dr. Michael Brescia, Diana Hadley, Dr. Dale Brenneman Arizona State Museum's Office of Ethnohistorical Research (OER) conducts, facilitates, and interprets research on the peoples of the southwestern United States and northern Mexico, providing access to a substantial collection of Spanish and Mexican documents through our archive and library, finding aids for researchers, scholarly publications, and public programs.
OER Programs...
- complement Arizona State Museum’s research
in pre-Columbian archaeology of the southwestern United States and northern Mexico;
- explore the ethnohistory, documentary history, and political ecology of the region;
- facilitate public programs and interpretive tours of Spanish colonial architectural treasures and other historical sites.
 Roping a yearling among 30,000 cattle,
Sierra Bonita Ranch, Arizona
courtesy Arizona Historical Society
Documentary Relations of the Southwest (DRSW)
Documentary Relations of the Southwest (DRSW) provides the research tools
and finding aids to the written record that began with the arrival of the Spanish
explorers in the 1530s. The 1,500 microfilm reels of documents,
many of them collected by the Jesuit Historical Institute , include the diaries of explorers and reports of missionaries and soldiers. They date from the first written accounts of contact with indigenous peoples in the 16th century to the Mexican declaration of independence from Spain in 1821. The place names, architecture, food, and many of the southwestern cultures have their origin in the history of this region. The 'Southwest' in this case covers Texas, New Mexico, Arizona, California, and northern Mexico—all of what was northern New Spain.
 Joseph de Urrutia’s map of Tubac, c. 1767
courtesy The Archaeological Conservancy
DRSW...
- features a detailed, online Master Index with more than 17,000 document clusters covering approximately 500,000 pages of documentation;
- holds an impressive collection of microfilmed historical documents generated by Spain during the colonial period (1530s-1821);
- includes documents covering a broad range of civil, religious, military, and ecological issues that speak to the relationship between Native Americans, Spanish colonists, Catholic missionaries, and the Spanish colonial administration.
Finding Aids
 Cocóspera Mission,
Sonora, Mexico
- DRSW Master Index - an online, computerized index to our archive and other repositories containing documents relevant to our mission.
- Biofile - a computer-generated biographical dictionary of approximately 19,000 persons appearing in the historical record.
- Biodex and Biodex 2 - names and references found in the indexes of approximately 200 historical and secondary works on the colonial Southwest
- Geofile - an alphabetical gazetteer of 64,800 regional place names and geographical features (not yet online; call for access).
OER Library...
- holds approximately 8,000 secondary works, reference materials, indexes to major archival collections, maps, ephemera, and guides to paleography and translation;
- connects with Arizona State Museum’s library collection of 50,000+ volumes related to
Southwestern archaeology and history.
OER Publications and
Research Projects
- Two series of documentary histories with support from the National Historical Publications and Records Commission (NHPRC): civil-military relations with four volumes published to date and one in progress, and Native American-Spanish relations with two volumes published to date and two more in progress.
- OER also researches regional environmental change and political ecology with support from the Forest Service, Bureau of Land Management, CLIMAS, and agencies that focus on the upper San Pedro watershed, as well as land grants and water rights in the greater Southwest.
Southwest Mission Research Center (SMRC)...
 Caborca Mission,
Sonora, Mexico
- founded in 1967, is a non-profit organization of scholars and the interested public that enjoys a long association with DRSW and Arizona State Museum;
- sponsors Kino Mission Tours and the quarterly newsletter SMRC Revista;
- compiles a bibliography containing 13,000 entries related to the history and culture of the southwestern United States and northern Mexico (with plans for online accessibility).
OER Faculty
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In This Section
OER/DRSW Main Page
Search the DRSW Master Index / Biofile Southwest
About DRSW finding aids
Other Databases and Links
Publications and Public Access
Related Links in Other Sections
Research at ASM
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