[2] His maternal uncle, Anthony Mercer was involved in setting up boy scouts in Malta during Baden-Powell's governorship of the islands.

His maternal grandfather was a Scottish architect and civil engineer who designed a new dock at the Malta Drydocks.

In 1928, he penned a series of short stories titled Il-Ħrejjef ta' Barraminau in the newspaper Il-Ħmar, with his writings being condemned by church authorities.

The other main speakers were Paul Boffa, Reggie Miller, Mosè Gatt, Indri Cilia, Leli Tabone, Nestu Laiviera and Turu Colombo.

Ellul Mercer followed the decision of the Labour Party's General Conference, which had removed Boffa from the party-leadership.

Following Mizzi's death on 20 December 1950, Giorgio Borġ Olivier became Prime Minister, however this minority government was weak, with another election held in 1951.

On 9 March 1955, Ellul Mercer was elected Deputy Leader of the Labour Party following Joseph Flores' resignation, who became speaker of the Assemblea Leġislattiva.

On New Year's Eve 1956, Deputy Prime Minister Ellul Mercer broadcast the traditional message of greetings to the Maltese people.

Ellul Mercer stated that the Maltese can look both to their future and their past with satisfaction, and that the country had managed to close the first, and most difficult phase, of the post-war reorganisation of its social and economic life.

Ellul Mercer said that the country's industrial progress would be ensured, with the Grand Harbour improved, an adequate water supply secured and afforestation plans.

As Minister for Public Works and Reconstruction between March 1955 and April 1958, Ellul Mercer completed a number of projects, such as the widening and reconstruction of traffic links at Porte des Bombes, Floriana, and the reclamation of land leading to improved linkages and road-infrastructure in Msida.

He also was a regular contributor to the monthly Labour magazine, The Knight, where he wrote a diary of his experiences in the Second World War.

His works include: Ġużè Ellul Mercer died in Tas-Sliema on 22 September 1961, aged 64 years.