There is a studio photograph of an unidentified Mrs Yeo with a girl and a baby in the Schmidt Collection at Auckland Public Libraries. It was taken by Herman John Schmidt in the second decade of the 20th century and can be viewed at:
https://kura.aucklandlibraries.govt.nz/digital/collection/photos/id/345479/rec/1
If you can identify this family, please let us know by using the Contact Us page.