Ekholm did extensive graduate studies in anthropology at Harvard University, where he earned master's and doctoral degrees.
Ekholm participated in and headed many archaeological expeditions to Mexico, Guatemala, Honduras and Belize. In 1949, Dr. Ekholm displayed at the museum a graphic and detailed exhibition showing parallels between advanced cultures in southern and eastern Asia and the Mayan civilization, which flowered between 300 and 900, and suggesting that the Mayans' forebears had migrated across the Pacific. The theory was a major focus of his career.
After retiring in 1974, he became Curator Emeritus and continued consulting on museum projects.
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