Once upon a time in Frederick County... Frederick County is Maryland's largest county in size, and with its central location in the state, it has seen a lot of state's history unfold. It still maintains much of its agricultural roots and scenic beauty. However, along its mountain slopes, in the street of its cities, and along its waterways, history has unfolded and, in some cases, been forgotten.Read about the first President of the United States. He lived in Frederick, and after his death his grave was forgotten. Discover the pioneers of aviation from the county who were contemporaries of the Wright Brothers. Learn how Babe Ruth was discovered in Frederick County. March with the Marines as they invaded Frederick County in 1922. Discover how Spanish Flu devastated the county in 1918. Secrets of Frederick County: Little-Known Stories & Hidden History About Maryland's Largest County tells the stories of interesting people, unsolved crimes, and unusual incidents throughout Frederick County. These are the stories you won't read about in history books. From award-winning author James Rada, Jr. comes another collection of fascinating stories and dozens of photographs that tell some of the hidden history of Frederick County.