Born in Kasauli, Punjab, India,[1] Blaker was educated at the St. Paul's School, Darjeeling.

[2] Blaker was 24 years old, and a temporary Major in the Highland Light Infantry, British Army, attached to 3rd Battalion, 9th Gurkha Rifles, the khas battalion in the Indian Army during World War II when the following deed took place for which he was awarded the VC.

Writing 16 years later,[4] he describes how the brigade was climbing a ridge with great difficulty to take a hill called Point 2171 from a determined and well-led force of Japanese.

Near the top he saw that the crest and northern flank of Point 2171 were strongly defended by automatics, woodpecker machine guns and mortars.

That night I wrote out the citation for Blaker's Victoria Cross, which was immediately awarded, posthumously".

His grave is located in the Taukkyan War Cemetery, 20 miles north of Rangoon (now Yangon), Burma (now Myanmar).