[2] Katong Convent was no larger than a village school, consisting of four classes and a total enrolment of 197 students.

Most parents kept their children at home when the school re-opened in January 1942 and their fears were confirmed, for in February 1942 Singapore fell to the Japanese.

At the outbreak of war, the school building at Martia Road was taken over by the British and became a military centre and was subsequently used as an internment camp to house local Japanese civilians as prisoners-of-war.

After the war ended in August 1945, and when the school re-opened at Saint Hilda's in October 1945 there were 12 classes, and 430 students were re-registered for Primary 1 to Standard 5.

The difficult task of re-organising the school, recruiting more staff, and bringing up academic standards fell on her shoulders.

After eight years of devoted service, Sister Finbarr was transferred to the Kuala Lumpur Convent and left in May 1954.

The students who made the grade were transferred to the morning session, and the less successful ones were placed in the commercial class.

The offer by the Ministry of Education of a piece of land at Marine Parade in exchange for the site of Opera Estate Convent enabled the secondary school to move to a new premise, whilst the primary school was merged with Opera Estate Convent and remained at the original location at Martia Road.

After many months of planning and fund-raising, at the end of 1986, the school moved into its new building with Karen Oei at the helm.

With a modern school premises and a bold outlook for the future, Katong Convent continued to flourish, with its students excelling academically, in the arts and in sports.

In 1990, the Primary section returned to the former site at Martia Road and Katong Convent became a single session secondary school.

Katong Convent was particularly outstanding in the Value-added rankings claiming top spots for both Express and Normal stream.

At the conclusion of the 2014 academic year, the school moved to a holding site in Geylang Bahru as the Marine Parade campus has undergone a two-year renovation programme under PRIME.

The event encourages individuals to step out of their bubble and express their artistic sides through the different performing arts.