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Florence May Hawley Ellis (née Florence May Hawley, also known as Florence Hawley Senter; September 17, 1906 – 1991) was one of the first anthropologists to work extensively on dendrochronology, or tree-ring dating. She conducted archaeological and
ethnographic Ethnography (from Greek ''ethnos'' "folk, people, nation" and ''grapho'' "I write") is a branch of anthropology and the systematic study of individual cultures. Ethnography explores cultural phenomena from the point of view of the subject ...
research in the Southwestern United States; and undertook some of the first dendrochronological research in eastern North America in the mid 20th century, examining samples from a number of
archaeological site An archaeological site is a place (or group of physical sites) in which evidence of past activity is preserved (either prehistoric or historic or contemporary), and which has been, or may be, investigated using the discipline of archaeology a ...
s. She was also highly regarded as a passionate teacher who pushed her students toward greatness by encouraging them to think for themselves and work hard for what they wanted to achieve. Although faced with many challenges in her career, and discriminated against for being a woman, she persevered in her research and became a great influence both for her students and for other women in her field.


Background

Florence Hawley was born in Cananea Sonora,
Mexico Mexico (Spanish: México), officially the United Mexican States, is a country in the southern portion of North America. It is bordered to the north by the United States; to the south and west by the Pacific Ocean; to the southeast by Guatema ...
where her father was chief
chemist A chemist (from Greek ''chēm(ía)'' alchemy; replacing ''chymist'' from Medieval Latin ''alchemist'') is a scientist trained in the study of chemistry. Chemists study the composition of matter and its properties. Chemists carefully describe t ...
for a
copper Copper is a chemical element with the symbol Cu (from la, cuprum) and atomic number 29. It is a soft, malleable, and ductile metal with very high thermal and electrical conductivity. A freshly exposed surface of pure copper has a pinkis ...
mine. In 1913, after the outbreak of the Mexican Revolution, her family moved to Miami,
Arizona Arizona ( ; nv, Hoozdo Hahoodzo ; ood, Alĭ ṣonak ) is a state in the Southwestern United States. It is the 6th largest and the 14th most populous of the 50 states. Its capital and largest city is Phoenix. Arizona is part of the Fou ...
. She was introduced to archaeology at a young age from her father during his excavating of ruins around their home in southern Arizona. In 1936 Florence married archaeologist Donovan Senter; together they had a daughter named Andrea. In 1950, after a divorce from Senter, she married Bruce Ellis who was a historian. Their marriage lasted until the time of his death in 1985.Parezo, Nancy J., ed. Hidden Scholars: Women Anthropologist and the Native American Southwest. Albuquerque: University of New Mexico Press, 1993. (211-213). She began teaching at the University of Arizona in 1929, where she was introduced to dendrochronology in a class taught by
A. E. Douglass A. E. (Andrew Ellicott) Douglass (July 5, 1867 in Windsor, Vermont – March 20, 1962 in Tucson, Arizona) was an American astronomer. He discovered a correlation between tree rings and the sunspot cycle, and founded the discipline of dendrochron ...
. She began teaching at the University of New Mexico fall of 1934 until she retired in 1971. It is possible that more professional anthropologists in the United States were taught by Hawley than by any other member of the profession. Even after her retirement she remained active in field research up until her death in 1991. She continued to write and excavate. She was passionate about her work and even after a broken hip returned to the field during her recuperation to supervise. She broke new ground in her research by developing and applying innovative techniques of
chemical analysis Analytical chemistry studies and uses instruments and methods to separate, identify, and quantify matter. In practice, separation, identification or quantification may constitute the entire analysis or be combined with another method. Separati ...
, dendrochronology,
ethnohistory Ethnohistory is the study of cultures and indigenous peoples customs by examining historical records as well as other sources of information on their lives and history. It is also the study of the history of various ethnic groups that may or may n ...
, and
Ethnoarchaeology Ethnoarchaeology is the ethnographic study of peoples for archaeological reasons, usually through the study of the material remains of a society (see David & Kramer 2001). Ethnoarchaeology aids archaeologists in reconstructing ancient lifeways by s ...
.


Education

Hawley graduated with a B.A. from the
University of Arizona The University of Arizona (Arizona, U of A, UArizona, or UA) is a public land-grant research university in Tucson, Arizona. Founded in 1885 by the 13th Arizona Territorial Legislature, it was the first university in the Arizona Territory. T ...
in 1927 with a major in English and a minor in
anthropology Anthropology is the scientific study of humanity, concerned with human behavior, human biology, cultures, societies, and linguistics, in both the present and past, including past human species. Social anthropology studies patterns of be ...
. She received her M.A. in anthropology the next year. She completed her Ph.D. in anthropology at the
University of Chicago The University of Chicago (UChicago, Chicago, U of C, or UChi) is a private university, private research university in Chicago, Illinois. Its main campus is located in Chicago's Hyde Park, Chicago, Hyde Park neighborhood. The University of Chic ...
after teaching at the University of Arizona. She used her excavations from Chetro Ketl for her dissertation, which was on the dated prehistory of Chetro Ketl. She applied the new techniques of dendrochronology and stratigraphic dating of the archaeological deposits to more fully understand the history and evolution of Chetro Ketl.


Employment history

Hawley began teaching at the University of Arizona in 1929. By 1933, the University of Arizona was faced with financial difficulties due to the Great Depression, and they asked most of the young faculty to take a year's leave of absence, which included Hawley. In the fall of 1934, she took a job teaching at the
University of New Mexico The University of New Mexico (UNM; es, Universidad de Nuevo México) is a public research university in Albuquerque, New Mexico. Founded in 1889, it is the state's flagship academic institution and the largest by enrollment, with over 25,400 ...
in the Department of Anthropology where she made less than the male professors. As a professor Hawley was not considered easy; she expected her students to learn and to think on their own. She taught over 20 courses, several of which were usually taught by men. She was found at one point to be teaching more courses than anyone else in the anthropology department. Hawley always brought new theoretical approaches as well as her own ideas into focus while teaching. Her students knew they were expected to organize and comprehend data, in addition to become familiar with the bibliographical material. She continued to work and to teach students in the field after her retirement.


Honors

Hawley strove for equality for men and women in not only
economic An economy is an area of the production, distribution and trade, as well as consumption of goods and services. In general, it is defined as a social domain that emphasize the practices, discourses, and material expressions associated with the ...
but also professional recognition. She contributed to this through participating in the "Women's Movement". Because of her superiority in her research as well as teaching, and her persistence to the idea of equality, she was honored at the "Daughters of the Desert" symposium as a leader among the women anthropologist who have worked in the Southwest. Hawley served as president of the
American Society for Ethnohistory American(s) may refer to: * American, something of, from, or related to the United States of America, commonly known as the "United States" or "America" ** Americans, citizens and nationals of the United States of America ** American ancestry, pe ...
in 1969 and in 1987 she was honored as one of 45 distinguished women featured in a traveling Smithsonian exhibit named "Daughters of the Desert". The University of New Mexico acknowledged her accomplishments by granting her an honorary Doctorate of Letters in 1988. The Ghost Ranch of Abiquiu, where she conducted her work in the 1980s, housed her extensive library in a large museum complex that bears her name.


Research

Florence Hawley applied the training she received from A. E. Douglass's dendrochronology class to tree ring analysis in the
Chaco Canyon Chaco Culture National Historical Park is a United States National Historical Park in the American Southwest hosting a concentration of pueblos. The park is located in northwestern New Mexico, between Albuquerque and Farmington, in a remote c ...
excavations where she worked with the
University of New Mexico The University of New Mexico (UNM; es, Universidad de Nuevo México) is a public research university in Albuquerque, New Mexico. Founded in 1889, it is the state's flagship academic institution and the largest by enrollment, with over 25,400 ...
field program in the summers of 1929, 1930, and 1931. She conducted
ceramic A ceramic is any of the various hard, brittle, heat-resistant and corrosion-resistant materials made by shaping and then firing an inorganic, nonmetallic material, such as clay, at a high temperature. Common examples are earthenware, porcelain ...
analyses with materials from Chetro Ketl and other sites in the area, and her ceramic chronologies were independently confirmed by tree ring dates.Nash, Stephen Edward. Time, Trees, and Prehistory: Tree Ring Dating and the Development of North American Archaeology 1914-1950. Utah Press: 1999 (213-243) From the Late 1950s through the 1960s she directed a summer archaeological field schools through the University of New Mexico. One of the most prominent discoveries was that of San Gabriel de Yunge, the first Spanish Capital of New Mexico, which dated from 1600, found near San Juan Pueblo. Her work on dendrochronology helped provides a baseline for southwestern chronologies and her work constituted a technical expertise which is still largely in demand. Hawley also conducted dendrochronological research in eastern North America, conducting some of the first such work in the region. She began her tree-ring research in the Midwest around the 1933 - 1934 academic year. She collected tree - ring specimens or inspected samples of archaeological wood from the University of Chicago's excavations in southern
Illinois Illinois ( ) is a state in the Midwestern United States. Its largest metropolitan areas include the Chicago metropolitan area, and the Metro East section, of Greater St. Louis. Other smaller metropolitan areas include, Peoria and Rockf ...
. In 1937, she continued her Midwestern dendrochronological fieldwork and collected 1000 living-tree
specimen Specimen may refer to: Science and technology * Sample (material), a limited quantity of something which is intended to be similar to and represent a larger amount * Biological specimen or biospecimen, an organic specimen held by a biorepository ...
s in eight different states in an effort to identify the climate signal recorded by trees across the Midwest. In 1941, Hawley published Tree-Ring Analysis and Dating in the Mississippi Drainage where she presented the major problems she and her team faced: they were working with new species, they were working across a huge area, there was a shortage in old growth timber because of the extensive tree cutting, and the wood was not preserved well because of the damp mound sediments. In 2019, the
Tennessee Valley Authority The Tennessee Valley Authority (TVA) is a federally owned electric utility corporation in the United States. TVA's service area covers all of Tennessee, portions of Alabama, Mississippi, and Kentucky, and small areas of Georgia, North Carolin ...
unearthed tree ring data in their archives that was collected by Hawley but that she was never allowed to publish.


Key excavations

Florence Hawley participated in many field excavations, including her work at the Chetro Ketl site in Chaco Canyon. After her retirement she continued to offer field training to interested students, which was based around the Ghost Ranch of Abiquiu. In 1934 she and her crew worked in western Kentucky and the Wickliffe mounds as well as in the Norris Basin in Tennessee collecting living- tree specimens, charcoal, and modern specimens. She also did work in the Mississippi Valley, as well as many Midwestern states.


Selected publications

* Hawley, Florence. "The Significance of the Dated Prehistory of Chetro Ketl, Chaco Canon, New Mexico." ''The University of New Mexico Bulletin'', vol. 1, no. 1, 1934. *Hawley, Florence. "Relationship of Southern Cedar Growth to Precipitation and Run Off." ''Ecology'' 18 (1937): 398- 405. *Hawley, Florence. "A Dendrochronology in Two Mississippi Drainage Tree-Ring Areas." ''Tree-Ring Bulletin'' 5 (1938): 3–7. *Hawley, Florence. "Tree Ring Dating for Southeastern Mounds." In: Webb, W.S. (Ed.), ''An Archaeological Survey of the Norris Basin in Eastern Tennessee''. Bureau of American Ethnology, Bulletin 118. Washington, D.C.: Smithsonian Institution; Government Printing Office, 1938. p. 359-362. * *Hawley, Florence. ''From Drought to Drought an Examination of Archaeology''. Santa Fe: Sunstone Press, 1988. *Hawley, Florence. ''San Gabriel Del Yungue as Seen by an Archaeologist: Examination of an Historic Site in New Mexico''. Santa Fe: Sunstone Press, 1989. *Hawley, Florence. ''Pueblo Indians: Archaeologic and Ethnologic Data: Acoma-Laguna Land Claims''. Taylor and Francis, Inc., 1977. *Hawley, Florence, Richard Ford, & Myra E. Jenkins. ''When Cultures Meet: Remembering San Gabriel del Yunge Oweenge''. Santa Fe: Sunstone Press, 1987.


References


External links



{{DEFAULTSORT:Hawley, Florence 1906 births 1991 deaths Anthropology educators American ethnographers Mexican emigrants to the United States University of Arizona alumni University of Arizona faculty University of Chicago alumni University of New Mexico faculty American women anthropologists American women archaeologists 20th-century American women scientists 20th-century American writers 20th-century American women writers 20th-century American archaeologists American women academics 20th-century American educators 20th-century American women educators