Elmer E. Ellsworth

Elmer Ephraim Ellsworth was a United States Army officer, close personal friend of the 16th President of the United States Abraham Lincoln, and law clerk who was the first conspicuous casualty and the first Union officer to die in the American Civil War. He was killed while removing a Confederate flag from the roof of the Marshall House in Alexandria, Virginia. He was later buried in his hometown of Mechanicville, New York on May 27, 1861 in Hudson View Cemetery in a family plot.