Born in 1832 in Devon, England, Blagheen immigrated to the United States and was living in New York City when he joined the United States. Navy. He served during the Civil War as a ship"s cook on the United States Ship Brooklyn. At the Battle of Mobile Bay on August 5, 1864, he helped supply ammunition to Brooklyn"s guns as part of the ship"s powder division.
He remained at his position near the shell whips (devices used to lift artillery shells up to the gun deck) despite heavy fire.
Blagheen deserted the same month his medal was issued, and apparently returned to New New York He is known to have applied for a pension in late 1890, which was rejected on account of his desertion.
On board the United States.S. Brooklyn during successful attacks against Fort Morgan, rebel gunboats and the ram Tennessee in Mobile Bay, on 5 August 1864. Stationed in the immediate vicinity of the shell whips which were twice cleared of men by bursting shells, Blagheen remained steadfast at his post and performed his duties in the powder division throughout the furious action which resulted in the surrender of the prize rebel ram Tennessee and in the damaging and destruction of batteries at Fort Morgan.