The following has been submitted by John Taylor:
Henry was born in Birtley in about 1880 and was a butcher when he grew up. He married Elizabeth Ann Million, known as Lizzie.
He served as a Private with 19th Battalion, Durham Light Infantry as a private at the age of 35 on a short service attestation. His regimental number was 40365. He was killed in action on the Western Front, on 25th March 1918. He is buried in the Serre Road Cemetery No.2 in the Somme region of France.
Henry Blacklock is remembered at Eighton Banks on E50.01 and E50.02
He is also remembered in The DLI Book of Remembrance page 59
