Puan exceeded the usual life expectancy for her species by more than ten years and was awarded a Guinness Book of Record for being the oldest verified Sumatran Orangutan.
As the founder of our world renowned breeding program her legacy is phenomenal with descendants living all over the world.
"But she remained the matriarch, the quiet, dignified lady she had always been".
Ms Thompson said she was an aloof and independent individual.
Yesterday the Zoo family farewelled Puan, the oldest orangutan in the world, due to age related complications.
Sumatran orangutans are critically endangered species who rarely reach the age of 50 in the jungle, the zoo authorities said, a BBC report said and Puan's greatness lies in the fact that she helped spread her species globally, doing a favour to its global survival.
"It feels quite surreal to have said goodbye, we all know that life isn't infinite, but for some reason Puan has always just seemed to be the one who might prove us wrong", Hart wrote in a eulogy published in the West Australian newspaper.
Zookeepers have paid emotional tribute to the world's oldest known Sumatran orangutan, "a grand old lady" who died at a Western Australian zoo on Monday.
"As hard as it was for us, it was the right thing to do", Martina Hart added.
"She demanded respect and she got respect".
Two of her daughters still live at the zoo, along with four grandchildren and a great grandson.
According to the World Wildlife Fund, there are only about 14,600 Sumatran orangutans.
She even exhibited those motherly mannerisms toward her zookeepers. This is predicted to increase in coming decades.
Growing trees to produce palm oil - used in many popular foods - is a particular threat to primates in Indonesia, as is mining for gold and sapphires in Madagascar.