Otis O. Roberts was born on March 20, 1842 in Sangerville, Maine. His parents were Amos and Christiana Roberts. He was married twice and had two sons and two daughters.

Roberts joined the Union Army in Dexter, Maine and served as a sergeant in Company H, 6th Maine Infantry.

Sergeant Roberts’ Medal of Honor citation read: "The President of the United States of America, in the name of Congress, takes pleasure in presenting the Medal of Honor to Sergeant Otis O. Roberts, U.S. Army, for extraordinary heroism on 7 November 1863, while serving with Company H, 6th Maine Infantry, in action at Rappahannock Station, Virginia for capture of flag of 8th Louisiana infantry (Confederate States of America) in a hand-to-hand struggle with the Color Bearer."

Roberts died on February 8, 1930 in Dexter, Maine and was buried at Mount Pleasant Cemetery in Dexter.

References:
Congressional Medal of Honor Society
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