The period following the Second World War saw many changes and the meeting was invigorated by the arrival of new families. Thomas and Elizabeth Hewitt with their daughter Mary came from Lurgan; Thomas and Peggy McDonagh and David and Helene McDonagh both took up residence in Portadown on marriage; William and Jean Matthews with their daughter Maureen joined the Society; Edmund and Gwen Greeves came to live in the town; the Williamson family came into more active membership. William H. Upton and family from Tamnamore came to live in Friends' Cottage after William Coulthart's death and gave great service to the meeting both materially and spiritually. With young children now in the meeting a regular Sunday School was begun by Annie Chapman. Ministry in meeting was varied and profound, yet relevant to contemporary life. Messages by the Elders of the time, George Chapman, Thomas Hewitt and Thomas McDonagh made a deep impression and can still be recalled.

A further influx of new families in the late 50s and 60s brought fresh vigour to the meeting. Norman and Helena Davis, of Hillsborough, moved to Portadown and their daughter Alice married Arthur Chapman in 1960. A large Sunday School came into being in subsequent years largely through the initiative of Alice Chapman. Children who attended at this stage were the younger members of David and Helene McDonagh's family, Michael and Gillian Chapman, Stephen, Grace and Elizabeth Chapman, John and Gillian Sinton, Paul and Janet Sinton, Jennifer and Jacqueline Uprichard, June and lan Upton and, on occasions, Jonathan, Frances and Helena Richardson from Moyallon and the Poole children from Bessbrook. In addition to Sunday School classes social events were frequently held with afternoon picnics and discussions for fathers and mothers on topics concerning parenting.

At this time action was taken to upgrade the accommodation. From the 1940s the entire meeting room was brought back into use. Subsequently electric heating was installed to supplement the solid fuel stove. After a few years the old stove was removed and additional heaters fitted. The upstairs gallery was enclosed to conserve heat. In 1963 major renovations were undertaken. Extra accommodation was built behind the meeting room on the site of the old coachhouse. It incorporated a kitchen and a general purpose room for Sunday School, small groups and teas. This new room was put to good use with mid-week evening meetings during the winter months and for prayer groups for various missionary organisations. A teenage Youth Group was also commenced, incorporating young people from other meetings in the area. They used the room once a month for games, discussions and social events.

Friends in these years continued their involvement in the church life of the town. George Chapman and David McDonagh served on the Young People's Convention committee, the latter for many years as Chairman. He was also greatly committed to the work of the China Inland Mission / Overseas Missionary Fellowship and was for many years Chairman of its Northern Ireland Committee. Thomas Hewitt and David McDonagh supported the Drumgask mission work very faithfully while Thomas McDonagh gave great service to the Moyallon Reading Room Sunday evening meetings. Moyallon Camp was a great focus for Young Friends with David and Helene McDonagh and Arthur and Alice Chapman active in its organisation. Edmund and Gwen Greeves were most committed to the Boys' and Girls' Crusader classes in Lisburn and Helene McDonagh maintained close contact with her neighbours through an afternoon Sunday School class conducted in her home. Within the Society of Friends many accepted responsibility in Monthly and Quarterly Meeting appointments. George R. Chapman served as Clerk of Ireland Yearly Meeting from 1954 until 1956 . His daughter, Avril, was also Clerk of Ireland Junior Yearly Meeting during one of those years. He attended the Friends World Conference in Oxford in 1952 and with his wife Annie travelled among Friends in North America, Australia and New Zealand.

One unique event occurred in 1962. On a certain Sunday morning a number of strangers arrived for meeting. They were Orangemen, members of Harmony L.O.L. 600. At the end of meeting they presented a large Bible in memory of our late friend, Samuel Hewitt, who was also a member of their lodge. The Bible still graces the gallery in front of the meeting room.