* Runaway America (1991) is a study of the "runaway slave problem" in the antebellum United States.
* The Randolphs: A Family in the White House (1999) is a biography of the Randolph family of Virginia.
* Thomas Jefferson: An Intimate History (2008) is a biography of Thomas Jefferson.
* First Lady: The Life of Lucy Hayes (2014) is a biography of Lucy Hayes.
Essays and articles
Edgerton has written numerous essays and articles on topics related to American history, including:
* "The Randolphs of Virginia: A Family Affair" (1999)
* "Thomas Jefferson and Sally Hemings: A Historical Debate" (2008)
* "First Lady Lucy Hayes: A Life of Service" (2014)
Other works
Edgerton is also the editor of several anthologies, including:
* The Randolph Family Papers: A Documentary History (1998)
* The Papers of Thomas Jefferson: Retirement Series, 1809-1826 (2005)
Edgerton is a frequent speaker on topics related to American history. She has appeared on numerous television and radio programs, including "The Today Show," "The Diane Rehm Show," and "The History Channel."