Around 1,000 people took part in a parade in Armagh before a thanksgiving service in Armagh Presbyterian Church, which was packed for the occasion.
Among those helping to mark the special day was Armagh City, Banbridge and Craigavon Borough Council Lord Mayor Alderman Margaret Tinsley, Upper Bann MP Carla Lockhart and Orange Order Grand Master Edward Stevenson.
13. Anniversary parade and service
Taking part in the special 50th anniversary service. Photo: Graham Baalham-Curry
14. Anniversary parade and service
Lord Mayor Of Armagh City, Banbridge And Craigavon, Alderman Margaret Tinsley was a guest at the church service. Photo: Graham Baalham-Curry
15. Anniversary parade and service
Rt. Wor. Bro. Rev. David McLaughlin, Grand Chaplain, JGOLI dedicates a new bannerette. Photo: Graham Baalham-Curry
16. Anniversary parade and service
Pictured at the anniversary service. Photo: Graham Baalham-Curry