Oscar E. Gilbert was a U.S. Marine Corps artilleryman and instructor, and retired after a thirty-eight year career in government service, university teaching, and international petroleum exploration. He is the author of numerous books on military history. Catherine R. Gilbert is a retired speech pathologist and audiologist. Her interest in genealogy led to extensive research into the organization and function of the Southern state militias (from Maryland to the Carolinas) in the American Revolution. With Ed, she co-authored True for the Cause of Liberty: The Second Spartan Regiment in the American Revolution; Cowpens 1781: Turning Point of the American Revolution. Catherine holds the non-profit Presidential Service Center Distinguished Service Medal.