There are multiple theories surrounding the mysterious disappearance of iconic aviator Amelia Earhart, who vanished in 1937 while attempting to be the first woman to fly around the world. Today, Ancestry.com has published a case file revealing some unique details into the investigation of what happened. The 73-page file consists of letters and telegrams sent in the 1960s by an interesting cast of historical characters, including Congressman J. Arthur Younger, U.S. Ambassador to Japan Douglas MacArthur II and members of the U.S. Navy and U.S. Department of State. The records give those of us curious about Amelia's past a first-hand view of the investigation into the claim that she and her navigator Fred Noonan were taken prisoner and executed in Saipan, which at the time was governed by Japan. Through the years, this adaptation of Earhart's death has become one of the many theories surrounding the 39-year-old's mystery-riddled disappearance. In the above letter, Congressman J. Arthur Younger requests an investigation be made into evidence from U.S. Army Sergeant Thomas Devine, who said he had seen Amelia Earhart's grave while he was stationed in Saipan. In the telegram below, U.S. Ambassador to Japan Douglas MacArthur II explains that Japan has identified eight people who may have knowledge about Amelia Earhart's disappearance in Saipan. The Earhart file is part of the Reports of Deaths of American Citizens Abroad collection on Ancestry.com. Explore more details of the investigation here, and decide for yourself what really happened to Amelia Earhart. And if you're still curious, go check out the movie "Amelia" coming out tonight. After learning more about the life of this amazing aviatrix, that's exactly what I plan to do.