Henry Camp was born in Topeka, Kansas. His mother left him in a garbage pile two days after he was born. He was then raised in a orphanage before he joined the United States Army. In the Army, he attained the rank of Master Sergeant. During his time in the Army his friends were "blown to pieces for a lie, for oil, for billionaires." At some point he was dishonorably discharged, and shortly thereafter he entered a life of crime and was later caught and headed off to Ryker's Island Prison. He then became cellmates with Dirk Garthwaite, also known as the Wrecker. At some point in his life he was a boxer.
Garthwaite, together with Camp and two other inmates at Ryker's Island Prison, Dr. Eliot Franklin and Brian Calusky, made a successful jailbreak and managed to locate his crowbar. Willing to share his power with his allies, The Wrecker had the three other convicts join him in holding onto the crowbar outside during an electrical storm. Lightning struck the crowbar, magically distributing the enchanted strength bestowed upon The Wrecker among the four of them. The Wrecker's three allies then adopted costumes and aliases as well: Franklin became Thunderball, Calusky became Piledriver, and Henry Camp became Bulldozer, constructing a special metal helmet for the occasion. Together the four superhumanly strong criminals became known as The Wrecking Crew, who were led by The Wrecker himself.
Bulldozer has fought many of Marvel's superheroes over the years, including The Avengers, The Defenders, and most often, The Mighty Thor himself. Unlike Thunderball, Bulldozer has remained steadfast in his loyalty to The Wrecker and has only been separated from The Wrecking Crew through various incarcerations in prison.
Along the rest of the Wrecking Crew, Henry joined Hood's criminal army, but was later imprisoned after the events of the Siege of Asgard, where they helped Iron Patriot.
At some point, he was captured by S.H.I.E.L.D. and was incarcerated at Pleasant Hill.
