Born in the parish of St. Sidwell's, Exeter.
Christened at St. Sidwell's Church, Exeter, on the 6th of October 1833. His parents, who were shown as Joseph Heacock, a tile-cutter, and his wife Mary (nee Pavey), had been married by banns at St. Sidwell's Church on the 2nd of December 1832. The witnesses were Richard Southern and Mary Heacock.
Enlisted by the 15th Hussars at Exeter on the 26th of December 1854 but posted to the 11th Hussars on the 2nd of February 1855.
Age: 18.
Height: 5' 6".
Trade: None shown.
Joined the regiment in the Crimea on the 29th of May 1855.
Discharged, "on the Reduction of the Regiment and unlikely to become a efficient soldier", from Canterbury on the 20th of September 1856.
Served 1 year 317 days.
Conduct: "good". Not in possession of any Good Conduct badges.
Entitled to the Crimean medal with clasp for Sebastopol and the Turkish medal.
Heacock, who became blind in his old age, attended the Old Comrades Dinner in 1912.
Died on the 27th of April 1912 and was buried on the 3rd of May in St. Marylebone Cemetery, Finchley, London, the 11th Hussars providing a military escort at his funeral.
St. Catherine's House records his death, aged 73 years, in Marylebone during the April-June quarter of 1912.
Obituary report from the X1 Hussar Regimental Journal, July 1912:
"One of the Crimean veterans present (No. 1933 Private Henry Heacock) at the Old Comrades' Dinner this year was Mr. Henry Heacock who, on account of the misfortune of being blind, had to have an attendant with him. Just a week later (27th of April) he passed from this life at the age of 76 years [sic].The deceased was born in the parish of St. Sidwell's, Exeter, and enlisted at Exeter on the 26th of December 1854, at the age of 18. He was sent out to the Crimea to join the regiment and served the last nine months of that campaign with the Eleventh.
On the return of the regiment to England he was discharged on the 8th of September 1856. The interment of his remains took place on the 3rd of May at St. Marylebone Cemetery, Finchley, the regiment being represented by a bearing-party of six N.C.O.s of the Regiment. [Canon William Lummis, then a Sergeant in the Eleventh Hussars, was one of the party.] A gun carriage with a Sergeant and 6 men was provided by "F" Battery of the Royal Horse Artillery from St. John's Wood. The nearest relatives to the deceased attended the funeral as well as an old chum of Heacock's, Mr. William Kirkham, formerly a Corporal, 7th Dragoon Guards, himself a Crimean War veteran. A wreath "From his old comrades of the X1th Hussars", together with a busby and sword, were placed upon the coffin."