"As my father and I found distraught relatives of those who had served and had attended for many years in the gardens, mostly quizzical and upset.
"The gardens as a whole with a marked cenotaph erected for those of D company who did not return, had a minimal presence that morning, an incident that should not have occurred," she wrote.
Baird said the service was saved by Harawira Craig Pearless — a veteran, Maori orator and historian currently studying D Company and its soldiers.
"His presentation and service gave justice to those who attended, their mourning descendants and carried well to give further meaning to outside visitors in the impromptu ceremony provided."
Whanganui District Council responded to Baird in an email, pointing out the council had no jurisdiction over the events of Anzac Day, nor over Pakaitore/Moutoa Gardens.
"We did not shift the service nor do we have any authority to do so," the council said.
"The decision to shift the service to the War Memorial Centre forecourt was made by the 28 Maori Battalion Association Whanganui Branch some time ago and confirmed by a letter from Ike Hunter, Association Kaiwhakahaere, in a letter to the Returned and Services Association dated March 12, 2018."
A spokesman for the RSA said the service had been advertised as being at the War Memorial Centre.
The traditional Maori Battalion service was held at the War Memorial Centre for a few years, but last year reverted back to Pakaitore/Moutoa Gardens, a reserve with special significance for Maori.
Ike Hunter from the Maori Battalion association was approached for comment but was uncontactable before deadline.