[3] Jashemski attended the University of Chicago, earning her doctorate degree in ancient history with a focus in Roman law in 1942.

[3] She began teaching in 1935, and taught at Lindenwood College, Missouri, before serving on the faculty of the University of Maryland from 1946 to 1980.

[4] Jashemski's work at Pompeii, Villa Boscoreale, and Oplontis began in 1961 and continued until 1984.

Jashemski is viewed as a pioneer of the field of garden archaeology in the ancient Mediterranean.

Jashemski was a member of Takoma Park Presbyterian Church for more than fifty years.