Early career After completing her master's degree, Parker became a research assistant for micropaleontologist
Joseph Cushman at the Cushman Laboratory in
Sharon, Massachusetts. Cushman and Parker studied
foraminifera, with funding from the
U.S. Geological Survey. While studying
foraminifera, Parker passed the U.S. Geological Survey exam and became an assistant paleontologist. In the 1930s, Cushman and Parker traveled to central Europe to study specimens and visit scientists, museums, and laboratories engaged in micropaleontology. The pair published 16 papers with research gathered between 1930 and 1940. During the summers of 1936 to 1940, Parker also conducted research for the
Woods Hole Oceanographic Institution alongside Fred B. Phleger.
Career Shift In 1940, Parker briefly stepped back from her scientific work and took a job as an academic secretary at
Foxcroft School, an exclusive girls’ school in
Virginia. In 1943, she returned to a research position with the
Shell Oil Company in
Houston, expanding her foraminifera
taxonomy work into the petroleum industry. She held a senior paleontologist position with the company from 1943 to 1945 when she became ill with
tuberculosis. Once she had recovered, Parker returned to working with Fred B. Phleger, then faculty at
Amherst College, in 1947. She conducted summer research in his laboratory, which was funded by the
Woods Hole Oceanographic Institution. Together, they studied the taxonomy of Atlantic foraminifera.
Later career Parker and Phleger continued to work together during the 1950s, moving their research to
La Jolla, California. After founding the Marina Foraminifera Laboratory at
Scripps Institution of Oceanography, Parker worked first as an associate in
marine geology, then as a junior research geologist, and, finally, as an assistant research geologist. After a brief break from Scripps Institution of Oceanography, Parker returned and was promoted to associate research geologist in 1960. She worked as a research
paleontologist from 1967 until her retirement in 1973. Although retired, Parker continued to work as a research associate for another decade. While at the Scripps Institution of Oceanography, Parker wrote and published over 30 articles, both independently and in collaboration with colleagues. ==Works and contributions ==