Henry C. Barnum was a Civil War soldier, serving with Company "D", 2nd Regiment, Connecticut Heavy Artillery during 1862-64. [Note: this soldier might possibly have been another person of the same name]. Henry was a jeweler in New York, and later was employed by a fruit warehouse in Philadelphia, Pennsylvania. He was killed in a gas explosion and fire on August 23, 1881, while working at that job.
His death was mentioned in an article in The New York Times of August 24, 1881 titled "Flames in Philadelphia; A Fruit Warehouse and Other Buildings Destroyed--Loss $150,000". The article, datelined Philadelphia, August 23, begins: "Warner Merritt's fruit warehouse, Nos. 50, 52, and 54 North Delaware avenue, was destroyed by fire this morning. The fire is believed to have originated from an explosion of gas which took place shortly before 6 o'clock this morning." After detailing the total loss of the six-story, brick and stone structure during the fire which followed the explosion, the article goes on to say: "Henry C. Barnum and John Fitzgerald, , employees of Warner & Merritt, were burned in the mine [sic]. Up to dark the charred remains of one human being were found, but they were absolutely unrecognizable. Further search will be made for the other to-morrow".