- 1924 – ACT Debuts for Mick Byrnes, John Calthorpe, William Cottingham, Fred Cox and O Richards
- 1924 – First match between the ACT and Goulburn
- 1929 – ACT Debuts for Francis Deans and Martin Richardson
- 1931 – First recorded Women’s Representative match played by a Canberra Women’s Team – against Collector in Collector.
- 1933 – Death of Fred Cox (ACT 1923/24-1926/27)
- 1938 – ACT Debuts for Alf Drayton and Jack Ireland
- 1940 – ACT Debut for Les Quigg
- 1941 – ACT Debuts for H Fitzgerald and Percy Gilholme
- 1947 – ACT Debuts for Archie Clark, Bruce Robin and Gordon Wynn (also debut as ACT Captain)
- 1947 – Fred Johnston makes first-class debut
- 1951 – ACT Debuts for Kevin McCarty, Alex Orr and Alan Ray
- 1951 – Jack McNamara makes debut as ACT Captain
- 1952 – ACT Debuts for Keith Leeson and Ian Way
- 1959 – Dr John James awarded CBE
- 1964 – Warren McDonald awarded Knighthood
- 1976 – Toby Macdiarmid awarded OBE
- 1980 – Birth of Matt McGann (ACT 2001/02)
- 1990 – Christina Matthews makes ACT Debut
- 2001 – Death of George Burgess (ACT 1950/51)
- 2001 – Bob Hawke awarded Centenary Medal
- 2012 – ACT Debuts for Josh Bennett, Djali Bloomfield, Michael Curtale, Matt Gawthrop, Kish Nadesan, Stuart Poynter and Daniel Rootes
- 2012 – Adam Tett makes debut as ACT Captain