This is from the book "Titanic, Belfast's Own" by Stephen Cameron (page 24):
"The records show that of the eight fatal accidents on the Titanic, six were in the shipyard and two in the works. Following detailed research I have been able to positively identify five of the eight men who died whilst working on the Titanic. Should not their names be remembered along with those of the many who were to perish when the ship sank?
On 20 April 1910, Samuel J. Scott, a catch-boy, aged fifteen, from Templemore Street, Belfast, died from a fractured skull after he fell from a ladder on the staging.
On 23 June 1910, John Kelly, a heater-boy, aged nineteen, from Convention Street, Belfast, died from shock after falling from the slipway onto the ground.
On 5 November 1910, William Clarke, a driller, aged twenty-seven, from Coulter Street, Belfast, fell from staging; he died two days later, on 7 November.
On 31 May 1911, James Dobbin, a shipwright from Merret Street, Belfast, was injured during the launch of the Titanic when he was crushed under falling timber; he died on 1 June.
On 13 June 1911, Robert James Murphy, a rivet-counter from Hillman Street, Belfast, died from a fractured skull after the staging he was standing on collapsed and he fell 30 feet. His son, Robert Murphy Junior, died during the construction of the
Olympic."