- 1867
Section HELIDON-TOOWOOMBA, ML, opened [29.21m].
- 1897
Section SANDATE-SHORNCLIFFE, Shorncliffe Branch, opened [0.69m].
- 1913
Section GILLA-YARRAMAN [Brisbane Valley Branch] opened [6.41m].
- 1964
Sections BIRRU-MARBURG [Marburg Branch][2.25m], ERNEST JCT-NERANG [Tweed Heads Branch][2.83m], WALLAVILLE-INNES [1.87m], ACLAND-COOYAR [Cooyar Branch][29.72m], KINGSTHORPE-HADEN [Haden Branch][20.59m], KILLARNEY JCT-KILLARNEY [Killarney Branch][27.18m], Tannymorel Tramway & BIBOOHRA-RUMULA [Rumula Branch][26.18m] all closed.
- 1969
Walkers-built DH31 entered service; Walkers-built DH43 removed from traffic after 22 years service [sold Sugar Research Ltd, Mackay, ex REDBANK on 20-6-1995].
- 1984
Walkers-built EMU75 entered service.
- 1987
Section BLUFF-CURRAGH, Curragh Branch, electrification energised
Section TOLGA-KAIRI [Millaa Millaa Branch] closed [7.030km]
Com-Eng built EL3108 entered service.
- 1993
DEL1734D worked 8U82 MAYNE-BEAUDESERT as its first train in corporate colours & after DOO conversion.
- 1995
IVERAGH Deviation, NCL, electrification energised.
- 1998
DEL2604 emerged from REDBANK Workshops splendid in corporate livery after overhaul.
- 2000
QRIG Mailing List is brought on-line officially after moving from Listbot to Egroups/Yahoogroups.
Researched and compiled by Peter Burkitt, with later additions as sourced. About this list, abbreviations and the full calendar