Almost a century on from the darkest ever day of GAA history, the Association has begun a series of events to mark Bloody Sunday, when 14 civilians were killed or fatally wounded at a football challenge match between Dublin and Tipperary.
The incident at Croke Park took place on November 21, 1920 when Crown forces intended to raid the crowd following a series of assassinations of British intelligence agents that morning by the IRA, directed by Michael Collins' squad.
However, panic broke out in the crowd as firing started and by the end of the shooting, 14 people were either dead or would die in the coming days.
Among them were Jane Boyle, a 26-year-old five days from her wedding, 10-year-old Jerome O'Leary and 11-year-old William Robinson.
The most famous of all those killed was the Tipperary footballer Michael Hogan, whom the main stand at Croke Park is named after.
By way of rather extraordinary coincidence, the person co-ordinating much of the events as the GAA Museum, Education and Event manager Julianne McKeigue, is a grand-niece of Hogan.
Her grandmother was Catherine (Catty) Hogan, sister of Michael.
"I took this job as a bit of a stopgap," she explains.
"I worked in PR as my background, but I always had a love of history and for the GAA so when I was between jobs, a job came up as a weekend manager in the museum as a tour guide.
"I took that to keep me in the workforce while I was looking for something else and then, eleven years later, I am still there.
"I moved about a bit. I had studied Journalism and Marketing and PR was my background, but I ended up helping with the launch of the Skyline Tour and then I moved over to the event side.
"It was a good experience and a learning curve - and I actually randomly managed the shop as well."
Along with Joanne Clarke, the curator of the museum, a lot of work has gone in to getting the tone right for this year.
Initially it was felt that a challenge match between the present day Tipperary and Dublin teams could have been played to commemorate the occasion, but the coronavirus pandemic has affected everything.
As part of the revised fixtures list for the intercounty season, the centenary will fall on the Saturday evening of the Leinster football final.
"The Bloody Sunday stuff was always in the future and then all of a sudden it is here," adds McKeigue.
"We have been planning it since this time last year and with Covid there have been a few changes back and forth and different things. But we are happy we have been able to launch this now.
"When we were doing the photos there during the week, you just realised that these people were just going to the match, or to play the match. You wouldn't think about it happening now, so it's emotional."
She continues: "Privilege is the word and I would be very conscious of all the families of all the other victims.
"Michael Hogan was the player and the stand is named after him and obviously the symbol of the player falling on the pitch.
"All of the families, they are all personal stories, all tragic stories. You had Jane Boyle, days from getting married.
"You had the three younger kids. Each family, it touched them and I feel the responsibility to tell all of their stories. And also to look at the day from the different angles.
"I think the lecture series manages that and I am really looking forward to that and seeing Joanne's work on the exhibition."
A programme of events commemorating Bloody Sunday began last Friday with the GAA Museum Summer School hosting a series of lectures on the themes of Sport, Peace and Reconciliation, chaired by Dr Siobhán Doyle of Trinity University.
There is a weekly series of 'Remembering Bloody Sunday' tours that immerses you in the stadium as you move around the various locations of Croke Park, and the Museum itself has an extended display that they have augmented with additional artefacts on loan for the year.
"Normally, they change their temporary exhibitions but they might keep this one. For the year that is in it, they might not be able to get as many through it to see it as we would have liked," explains McKeigue.
"Hopefully by next year maybe the secondary schools could come back and see it, so it might even stay longer than the year."
September 14 is the first date of a series of 'Mondays at the Museum' lectures, these being hosted at 7pm.
The first two weeks will feature Professor Diarmuid Ferriter of UCD, explaining the context of the War of Independence at the time, and Dr Anne Dolan of Trinity detailing the exact movements of the morning of Bloody Sunday. Admission to both is free as part of the Dublin Festival of History, though tickets must be reserved in advance.
"We are looking at it from different angles and we hope there is something in it for everyone," adds McKeigue.