The Leonard Group performs historical and litigation research at any facility in the Mid-Atlantic and New England areas, including the following major research facilities:

  • Library of Congress
  • National Archives – College Park, MD
  • Naval Historical Center
  • Museum of Television & Radio
  • Smithsonian Institution
  • Gotham Center for New York History
  • MacArthur Memorial Library & Archives
  • National Archives – Washington, DC
  • U.S. Supreme Court
  • The Paley Center for Media
  • Library of American Broadcasting
  • New York City Public Library
  • New York Historical Society
  • U.S. Army Heritage and Education Center

We perform research at any facility, large or small.


The list of subjects we have researched is endless. The following is a partial list of persons or events:


  • Gen Curtis LeMay
  • Gen George Patton
  • William Jennings Bryan
  • Dwight Eisenhower
  • Mabel Walker Willebrandt
  • George Wallace
  • George Washington
  • J. Edgar Hoover
  • George C. Marshall
  • Sigmund Freud
  • Douglas MacArthur
  • Eddie Rickenbacker
  • William Hornaday
  • Margaret Meade
  • Hap Arnold
  • James Madison
  • Clyde Tolson
  • Alexander Hamilton
  • Robert J. Oppenheimer
  • Clara Barton
  • Boston Strangler

Events & Subjects

  • Writing the U.S Constitution
  • D Day
  • Invention of tanks
  • Salvage at Pearl Harbor
  • German U-boat sinkings
  • USS Wake in WWII
  • Alien sighting in New Mexico (Project Bluebook)
  • U.S. Navy in WWI
  • Civilian deaths in WWI
  • USS Oriental in Civil War
  • Triangle Shirtwaist Fire
  • American Protective League
  • Watergate
  • Battle of Little Bighorn
  • Worker safety in America
  • WWII attack on China coast
  • 1920s Prohibition
  • California oil spills in 1960s
  • The American flag
  • US Army unit Histories
  • Japanese war 1400 subs

For Whom?

Documentary film companies and historical authors comprise a large segment of our client list. For authors, our unique file-naming system provides all information necessary for proper citations for each page or photo we copy. Corporations have used our services to research their corporate history, and we help people from all walks of life research family  and military history, or subjects for school.


Digital copies of still images (documents or photographs) can be produced according to your specifications. Using the latest technology, we can provide searchable PDF files, which is the most popular choice among our clients. Individual JPEG images (or any other format) are always an option.

Video footage is provided on DVD disks. We also provide all necessary research to determine rights and permissions for all video clips. At facilities that do not have copying capabilities, research-quality video is captured with a digital video camera recorder.

Documentary Research

The Leonard Group provides historical research for numerous documentary films, including:
  • U.S. Navy records, photos, and films pertaining to midget submarines used by the Japanese in their attack on Pearl Harbor for a PBS NOVA documentary
  • papers of Edward Brooke, former Attorney General of Massachusetts, for a documentary on the Boston Strangler for the National Geographic Channel
  • captured Japanese documents, video, and declassified military papers concerning the I-400, or Sen Toku, class of Japanese submarines during WWII for a PBS Secrets of the Dead documentary
  • video of Canadian troops landing on D-Day for a documentary
  • video of post-war Japan showing the U.S. efforts in rebuilding the country for a documentary
  • U.S. Army War Crimes transcripts from WWII about the murder of the family of Albert Einstein's cousin in Italy by the Nazis for an Italian documentary
  • video and Navy photos of current and former Master Chief Petty Officers of the Navy (MCPON) for a documentary produced for the U.S. Navy
  • video from the WWII Nuremberg War Crimes Trial, as well as the International Military Tribunal in japan
  • the documentary on Nazi Concentration Camps produced by the U.S. Army and shown at the Nuremberg War Crimes Trial

Script Writing

The President of The Leonard Group, Kevin Leonard, optioned a screenplay he wrote about the life of WWI hero Eddie Rickenbacker. His screenplay won a Best Screenplay award in Clint Eastwood's Monterey County Film Commission 2007 Screenwriting Competition, and was a finalist in both the 2007 FilmMakers International Screenwriting and the 2007 Screenwriting Expo Screenplay competitions. The Leonard Group provides scriptwriting for corporate videos. Contact us to discuss how we can assist you with your corporate video needs.

Documentary Research Clients