Hallam was born on 3 April 1888 at 55 Marine Parade, Brighton, East Sussex, England, the youngest son and child of Walter Thomas Hindmarsh Radford, Ship & Insurance Broker merchant, and Ann Louisa Maria Radford of Hillside. He was the youngest of 6 siblings: Annie Marguerite, Walter Guy, Ethel May, Archibald Campbell and Maurice Clive. He was baptised on 23 May 1888 in Hendon St Mary, England. He was educated at prep school in Meads, Eastbourne, Charterhouse School and the University of Oxford.
Theatrical career
He began his career in Shakespearean roles with Sir Herbert Beerbohm Tree's company in 1908. He had an early success as Archie Graham in Cosmo Hamilton's The Blindness of Virtue, opposite Doris Lytton as Effie. He appeared in New York City with Billie Burke in Mrs. Dot. On 2 April 1911 he was resident at 25 Park Crescent, St Marylebone, London, England. He created the character of a privileged young "knut", Gilbert the Filbert, for The Passing Show, the original revue of that title by Herman Finck, which opened at the Palace Theatre, London, on 20 April 1914. He also recorded the song of the same name for the HMV label on 4 June 1914..
Death
Hallam died in his 29th year whilst serving as a Captain with a Kite Balloon Section of the Royal Flying Corps in France at the Battle of the Somme. In the afternoon of 20 August 1916 on the Northern part of the Somme battlefield he was crewing a tethered un-powered observation balloon watching the German line near the village of Gommecourt, when its steel cable tether snapped, and the balloon, caught in an Easterly wind, began to drift towards enemy lines out of control. To avoid capture by the enemy Hallam bailed out of the balloon's basket but he was obstructed from jumping clear, and fell several hundred feet to his death after his emergency parachute failed to deploy. His body was buried at a British military cemetery at the nearby village of Couin.
Personal life
Before entering service for World War I Hallam fell in love with Elsie Janis, with whom he had starred in The Passing Show of 1915. They set up home in the city of Liverpool.
