I accept this answer based on the credentials of Dr. Lois Carr.
August 4, 2015 Baltimore Sun:
Dr. Lois Green Carr, an economic and social historian of old Maryland and the principal historian of St. Mary's City, died of dementia complications June 28 at Baywoods in Annapolis. The former Eastport resident was 93.
A specialist in Southern Maryland history, she created a 47,000-card file detailing of lives of St. Mary's County inhabitants. Friends joked she knew every name, address and telephone number of its 17th-century residents.
She earned a bachelor's degree from Swarthmore College, a master's from Radcliffe College and a doctorate in history from Harvard University.
In 1967 she was named historian for Historic St. Mary's City and held the post for 45 years.Dr. Carr served as a senior adjunct scholar at the archives from 1988 until 2005. In 1989 she became a senior historian of the Maryland Historic Trust. In 1992, a conference in her honor was held at the University of Maryland at College Park. The Historic St. Mary's City Commission awarded Dr. Carr its highest award, the cross bottony, in 1995. In 2001 she received an honorary degree from St. Mary's College of Maryland. She was the 1996 recipient of the Eisenberg Prize for Excellence in the Humanities. In 2000 she was named to the Maryland Women's Hall of Fame.
