Hi William,

Re Drysdale River

https://en.wikipedia.org/wiki/Drysdale_River

The river was named after a director of the Victorian Squatting Company, Thomas Andrew Drysdale, by the company's surveyor Charles Burrowes, in 1886.

https://peopleaustralia.anu.edu.au/biography/drysdale-thomas-andrew...

Thomas Andrew Drysdale - Wife - Annie Susannah Drysdale
Birth 2 February, 1828 Sydney, New South Wales, Australia
Death 4 September, 1905 (aged 77) East Melbourne, Melbourne, Victoria, Australia
Cause of Death cancer (stomach)

From Ancestry.com:
Born in Sydney, New South Wales, Australia on 2 Feb 1828 to [Captain] Andrew Drysdale and Rachel Turnbull. Thomas Andrew Drysdale married Ann Susannah Chapman and had 9 children. He passed away on 6 Sep 1905 in East Melbourne, Victoria, Australia.

Note: Captain Andrew Drysdale was a well known Australian Pioneer.

Best regards

Dancing with the Dead by Helena Drysdale

A journey to the spice islands of Zanzibar and Madagascar

Letters and a shroud in her aunt’s attic led Helena Drysdale to follow in the wake of her nineteenth century ancestors to the spice islands of
Zanzibar and the Comoros, and into the hidden wilds of Madagascar. She unearthed stories of slave trading and piracy, and was soon caught up in the Malagasy worship of their ancestors.

I had read a couple of books by this lady before, she's a good writer, but I haven't read Dancing with the Dead yet - it sounds interesting.

Best regards

There is an interesting collection of Drysdale records in the Glasgow & West of Scotland Family History Society

:
https://www.gwsfhs.org.uk/surname/drysdale/