Mourners gathered at a property in Otorohanga on Monday to pay their respects to Clare and Ross Bremner.
The 60-year-old was stabbed to death in her own home on Tuesday night. Suspected murderer Ross Bremner was found dead three days later at a rural property in Kinohaku, along with two other people.
More than 100 people have attended the service, including Otorohanga Mayor Max Baxter.
Mr Baxter said a "great cross-section of the community" were present at the service.
"There's a lot of very close friends of the family here, a lot of relatives - and people outside the district and the immediate community that just want to come and pay their respects."
He says Otorohanga is still mourning the loss of Ms Bremner, and says after less than a week, it remains "raw" and "still pretty hard" for the district.
"I've seen a lot of supporters come into me, sharing the pain from all around New Zealand. It's something that cuts pretty close to the heart for most communities, and certainly in a small town like this where everybody knows each other," he said.
"It's about sharing the stories and keeping the fond memories - one thing about grief is actually really bringing it to the surface, sharing the stories of the past, and celebrating the life that has been."
A white marquee with seating was set up for members of the community who were welcomed onto the property with a waiata after 11am.
Mourners dressed in black and carried countless bunches of flowers.
Keith Bremner survived Tuesday night's knife attack but was critically injured, and remains in Waikato hospital.
Family friend Geoff Benefield says he is recovering slowly.
"He is off the breathing apparatus and at this stage he is showing signs of recovery. But it will be a slow process and to be honest very terrible thing to wake up to find that your son and wife are deceased."
Police are still investigating why the attack happened and why Ross Bremner's body was found alongside two others at a separate property on Friday.