This altar between 1882 and 1950 was dedicated to St Francis of Assisi. The chapel of St Joseph was smaller in this same chapel.
The painting of St Joseph was painted in Rome in 1937. The painting depicts St Joseph working as a carpenter and the child Jesus helping him. At the rear of the painting through a small window you can see the image of Our Lady looking over.
The painting was paid by Giuseppe Bayona, whose coat of arms can be seen on the painting. Before this painting there was another painting by Giuseppe Cali which was painted in 1881 that was destroyed during the war.
In 1950 as the painting was smaller for the size of the altar it was enlarged by a Franciscan Capuchin priest Fr. Fawstinu.
The white marble altar was the main altar for the church. This was constructed in the present place as seen today in 1910 after the new main altar was constructed. In a small niche in the main altar is a relic containing a small stone from the house of Our Lady in Nazareth.
At the top side of the altar two niches depict the stone statues of St Anthony of Padova and St Bonaventure, two Franciscan saints. Under the niche of
St Anthony of Padova there is a niche with the statue of St Baskal Baylon which was placed here in 1985. The statue of St Baskal Baylon was made by Carmelo Mallia in 1913 on the occasion of the Eucharistic International Congress held in Malta in that year.
On the side of the altar are the 13th and 14th Station of the Via Crucis in a marble frame made by Ronald Pisani.
The paving of this altar was paid by Elvira Simler whose coat of arms are seen on the marble floor in 1954.