I have been doing more digging and have found someone with a link to the McCaugherns. I have viewed the family tree which shows Violet being married to Thomas mcCaughern and the two children "Jack" ( John) and Melvin. I will try to figure out how to put up this photo I have because now, on closer inspection the two boys in the photo are not twins ( although they are dressed in similar outfits) you can see that the one on the right ( which I think is John) is older than the one on the left...I can see by the type of shoes he has on ( and foot size) as well as the length of his legs and the fact that he is wearing shorts rather than rompers which is what the one on the left ( Melvin?) is wearing. The photo was taken at "Hobdays Rona Studios" in Fielding. I know that Daniel Colvin McCaugherns "Excelsior tearooms" were next to the Cobbes Building in Manchester St. It also happens that Hobdays Rona Studios were also next door to the Cobbes building. I have scanned the photo and sent to the McCaughern link in the UK to see if they can cast any light ( although, they only know a little about Melvin and John and knew nothing about Olga!