Elizabeth Warder Campbell (née Crozer; August 11, 1893 – December 21, 1971) was an American archeologist, notable for proposing a much earlier date for the presence of humans in the desert Southwest than was generally accepted. She worked with her husband William (Bill) Campbell and first proposed that artifacts found along the shores of Lake Mojave and other Pleistocene lakes and rivers of the desert West were contemporaneous with the presence of water. They showed that there were virtually no sites that were not associated with archaic water sources. They hypothesized that the geologic features associated with the artifacts could be used to date the period of human habitation. This is the first use of what has become known as environmental archaeology.

Elizabeth Warder Crozer was the youngest of four daughters born to upper class parents: John Price Crozer II and Elizabeth Steger Warder Crozer of Upland, Pennsylvania. She was born on August 11, 1893, at the Crozer summer cottage in Beach Haven, New Jersey.

Her father was the grandson of John Price Crozer, founder of the Crozer textile mills and possessor of the Crozer fortune. When the elder John Crozer died the younger John Crozer inherited the mills and formed a partnership with his father under the name: S. A. Crozer and Son. When S. A Crozer died in 1910 John inherited coal companies, an iron and steel company, shares of a railroad and farms. The Crozer family founded the Crozer Theological Seminary, the Crozer Arboretum, and the Crozer Quarterly. They also built the George K. Crozer Mansion and are the namesake of the Crozer-Keystone Health System.^{[citation needed]}

Her uncle was Hermann Volrath Hilprecht, professor of Assyriology at the University of Pennsylvania and a scholar of Near Eastern archaeology. He was involved in the excavations at the Near Eastern site of Nippur. Campbell described in her diary how her Aunt Sallie would travel with Hilprecht to Europe and how "..[s]he never let her loveliness interfere with anything. She climbed the pyramids with three Arabs to push and pull."

Campbell was schooled at home by a French tutor until age fourteen. In the fall of 1909 she began attending Miss Irwin's School (later the Agnes Irwin School) and graduated in 1911. Until World War II the education of most daughters of Philadelphia high society who attended Miss Irwin's ended at the secondary level. This was Campbell's last formal education.

Campbell married William (Bill) Campbell in May 1920. Bill had served in World War I and had been gassed two days before the armistice of November 11, 1918. His lung damage, due to exposure to mustard gas, caused them to move to Los Angeles, California, and later to the drier climes of Twentynine Palms where they established a homestead.^{[citation needed]}

When Campbell's father died in 1926 she inherited a trust that enabled her and Bill to live comfortably for the rest of their lives.

The Campbells maintained their residence in Twentynine Palms, and lived in a summer home on the shores of Lake Tahoe, near Glenbrook, Nevada, where Bill died in June 1944. After his death, Campbell sold the house in Twentynine Palms and moved to Carson City, Nevada, where she met and married Joe Cecil Turman. The marriage lasted a short time before it was annulled. She moved to Tucson, Arizona, around 1952 where she lived until 1961.^{[citation needed]}