Bachelor, Elmhurst College, 1969. Master of Arts, State University of New York, Oneonta, 1974.
Historian Department of Energy, Arlington, Virginia, 1974-1977. Archivist United States National Archives, Washington, 1977-1980. Curator United States Navy, Bethesda, Maryland, since 1980.
Consultant United States Ship Monitor Program, Washington, 1980-1984, United States Postal Service, 1995, Smithsonian Magazine, 1994, National Geography Magazine, 1997.
Member North Atlantic Society Oceanic Historians, American Society Naval Engineers, United States Naval Institute.
Married Patricia Eliassen.