Who was Emily Mary Ann Poole Phelps Roberts?
She was born between 1848 and 1851
I have her as Emily Mary Ann Poole Phelps

the name Poole is unusual and may be a good hint of her mother

I cannot find the Phelps emigrating to New Zealand, maybe you could help
There was a Edgar Phelps from Carterton killed in WW1 whose parents were Charles and Rose Phelps - he was born 1892

But Carterton is a VERY good place for our Emily to be as she married Eli Strawbridge about 1873 and they had 3 children in Carterton from 1872

Emily had a son, Alfred Roberts prior to her marriage to Eli - don't know if she was married to a Mr Roberts or not, but he is reported to have died in 1871

You can find Emily on a couple of sites but nobody mentions anything about her birth place or parents or where she is buried
Most have her written as though Roberts was her maiden name - I don't believe this is true . . as the name Phelps, or even Pool is more likely and that she was using the married name of Roberts when she married Eli Strawbridge