It was a great boost to Sibu, finally to have a Mandarin speaking priest, who also introduced the Legion of Mary.

De Vos died suddenly of a heart attack when cycling to St Mary's convent.

The Mission had acquired a piece of land next to the road, where a handsome church St Charles was built.

The priests from Sibu looked after the Iban communities, who were previously serving in the Dalat and Mukah missions.

Dignum Marcus travelled extensively for 9 years visiting longhouses by boat, on foot or by car.

A Malaysian government's ruling that only allowed a ten years stay for missionaries arriving after Malaysia Day (31 August 1963) was taking its toll.

Ferdinand Vergeer's special skills for catechetists proved most useful in Sibu, giving the Confraternity of Christian Doctrine (CCD) a lot of help in teaching young people from non mission schools Catholic doctrine.

Anthony van Vught travelled with Sibu as base to the remote areas of Selangau.

He served in Sacred Heart for 5 years taking a great interest in the youth.

Many remaining expatriate Mill Hill fellow priests enjoyed his hospitality and company for almost 20 years in Sacred Heart as rector.

Michael Lee was the first priest (and another native son of the parish as well as the town of Sibu) to be ordained in the new Church on 22 October 1985.

Thomas Taam, bought a semi detached house costing RM 100,000 at Rejang Park as a Catholic Centre.

Thomas Taam, also bought a detached house for RM 125,000 to be used as a Catholic Centre in Sukun Area.

The construction of Wisma Katolik costing RM1.5 million and Catholic Centre, Belatok at RM 300,000 were completed in 1991.

His Lordship, Bishop Dominic Su, celebrated his Sacerdotal Silver Jubilee on the following day.

Bishop Dominic Su on 19 June 1998 on the Feast Day of Sacred Heart of Jesus.

Thomas Connors was appointed to Sacred Heart Parish from this year to look after the Iban Catholics.

In 2015, the cathedral was renovated and re-dedicated with a new touch and a larger sitting capacity of 3,200 overall (900 people on the upper level pews).