Mrs Chalmers said the group prayed and sang hymns and waiata where the balloon crashed to the ground. A similar ceremony was held nearby where two victims were found.
Flowers were handed out for guests to place.
"It was a very caring service and I hope it was healing for the families involved," Mrs Chalmers said. "I found it a very difficult service, but I think [it was] something that to be done."
The cordon was then lifted and the road opened to the public shortly before 7pm.
Area commander Inspector Brent Register said the site investigation and gathering of physical evidence was complete.
A metal detector was used yesterday before the remains of the balloon, basket and cylinders were removed in a shipping container. The Transport Accident Investigation Commission said the container would be held at a secure Wairarapa location overnight and taken to its Wellington workshop facility today.
Detective Senior Sergeant Sean Hansen, heading the police investigation, said up to 20 officers had been involved, and had spoken with more than 60 people who were witnesses or the first to respond to the incident.
"We're getting a very good picture about what happened."
The information was being shared with the commission and the Civil Aviation Authority. Police would soon begin analysing it, with all evidence going to the coroner's office.
But Mr Hansen said while the interviewing process had started to wind down, the investigation was likely to continue for months.
A further victim, Stephen Hopkirk, 50, has now been formally identified by Coroner Peter Ryan.
A coronial inquiry was also opened and adjourned until police and TAIC investigations are complete. The coroner prohibited publication of photos which may be relevant.
