The street in Australia named after my great great grandfather

My family history stuff is put away and I'm far too hot to go and look for it, so this is written from memory, but I think it's right.

I've posted a lot about my great great grandmother's brother Sandy Campbell and also about her sister Johanna Robertson Campbell. Both were senior members of Queen Victoria's staff at Balmoral. But what about my great great grandmother Jane Clark Campbell?

She died aged only 22, having already had an illegitimate son with a man called Alexander Calder.

The boy, my great grandfather, was brought up by the Campbell family in Scotland, but Alexander left for Australia. He became one of the first residents of the town of Smeaton in Victoria, and this road there is a street named after him.

Calder Street is the one going off to the right in the photo above – you can see the Calder St. signpost pointing the way. The inscription below is on the Campbell family monument in the old kirkyard at Crathie.