[1] Haskell was born in Chelsea, Massachusetts, on February 12, 1843, and joined the Army in August 1862.

He was awarded the Medal of Honor on 18 November 1896, for distinguished gallantry at the Battle of Antietam.

[2] Haskell died on October 29, 1925, and was buried at the Beechwood Cemetery in Centerville, Massachusetts.

[3] Citation: The President of the United States of America, in the name of Congress, takes pleasure in presenting the Medal of Honor to Sergeant Marcus M. Haskell, United States Army, for extraordinary heroism on 17 September 1862, while serving with Company C, 35th Massachusetts Infantry, in action at Antietam, Maryland.

Although wounded and exposed to a heavy fire from the enemy, at the risk of his own life Sergeant Haskell rescued a badly wounded comrade and succeeded in conveying him to a place of safety.