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Helen M. Hierholzer - Public domain portrait print
Summary
90-105, 9A, "Portraits, Hia-Hig"; "Helen M. Hierholzer was a psychologist at Catholic University who, with Harriette E. Linfert, developed a scale for measuring the mental development of infants during the first year of life."
Tags
Date
1900 - 1950
Source
Smithsonian Institution Archives
Copyright info
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