Long was a Black American of mixed race descent (Black, White, Native American) descent and was a son of Herman Long and Mildred Keels. Many of his ancestors, along with the majority of Blackfork community members descendant from free people of color from Virginia and North Carolina, and many of them were Native Americans from tribes such as the Saponi. Sgt. Long graduated from Decatur-Washington High School in Blackfork, Ohio. Long joined the Army in
Ashland, Kentucky in 1963, and by June 30, 1966, was serving as a
Sergeant in Troop C, 1st Squadron,
4th Cavalry Regiment,
1st Infantry Division. On that day, Long's unit came under heavy enemy attack during a
reconnaissance patrol. During the battle, a
hand grenade was thrown near Long and the crew of a disabled
armored personnel carrier. He threw himself on the grenade, successfully protecting his fellow soldiers while sacrificing his own life. On May 29, 2016, a commemoration in
Oak Hill, Ohio took place. During the ceremony HB 366 named the portion of State Route 93 from the southern boundary of the Village of Oak Hill to the Jackson County line as the “Sgt. Donald Russell Long, Medal of Honor Recipient, Memorial Highway.” ==Medal of Honor citation==