There were tears and scenes of people in thoughtful silence as they beheld the place that changed their lives forever.
Gary Coghlan, whose father Lawrence Coghlan died in the explosion, acknowledged in te reo the most important element at the heart of that fateful day: "the people, the people, the people".
He also noted "a time of healing" the 50th commemorations offered for those affected by the tragedy.
Strongman historian Peter Ewen outlined how when "coal was king" Strongman was at its heart in the Grey district.
From its beginning in 1939 Strongman was "going to be gassy" with 11 other men losing their lives in single incidents there, including a large explosion in 1956, aside from the 1967 tragedy.
There were 150 men working underground at the time of the disaster, with up to 296 who were scheduled to be at work that day.
On Saturday there was a pause as each name was read by retired Runanga miner John Sturgeon - each with a simple anecdote of the individuals who died.
Master of ceremonies, Archdeacon Robin Kingston pondered the "fortuitous slowing down" of the gas explosion, which had saved many more lives, and those who stayed for 14 hours to bring out the first 15 bodies.
He also noted healthy and dangerous grief - with the former well acknowledged in the local community with public memorials - and touched on more recent events and how the police, fire and Mines Rescue all recognised their parameters at the time.
"It was wonderful that they recognised that Mines Rescue were the ones in charge," Mr Kingston said.
In contrast, the police took charge at the Pike River disaster.
Speaking afterwards, Anthony O'Donnell recalled as a seven-year-old seeing the stricken face of one of his aunts and how he "just knew" his father was dead.
He said on Saturday the 50th commemorations had underscored the "common experience" of the mining fraternity - "sticking together, staying together".
Strongman 50th co-organiser Rose Green said they were rapt with how it had all come together since October. "It's like family coming together - talking, laughing and crying."
It had included the surprise of people connected to the tragedy returning who had previously been untraceable, but who had heard about the reunion and showed up "on the spur of the moment".
Former coalminer and Mines Rescue volunteer Harry Bell, later New Zealand's chief inspector of mines, paid tribute to the reunion organisers: We had an awful lot of reminiscing, of course ... and there was a few wee tears."
- Greymouth Star