Colonial Yacht Clubs
Some of these have been found since I wrote this post, but please let me know if you have any other of these buttons!
Sydney Yacht Club
This organisation started in February 1856. In May they issued the Laws and Regulations:
Between February and June 1862 the club had faded away, so that several men met together to revive the once successful club. They succeeded, and in June the following year received the Royal warrant, becoming the Royal Sydney Yacht Squadron. In 1865 the Secretary let it be known that he had an ample supply of club buttons for the members.
For examples of the later squadron era button, see
http://www.austbuttonhistory.com/12th-march-2021/
http://www.austbuttonhistory.com/5th-february-2022/
http://www.austbuttonhistory.com/28th-february-2022-new-finds/
South Australian Yacht Club
A club of this name began in 1855 but some time after 1863 dissolved. In November 1869 a new club of the same name was started, with the first race on New Year’s Day, 1870.
Buttons were being shipped in 1873.
In 1890 they received the Royal warrant, becoming the Royal South Australian Yacht Squadron.
For an example: see http://www.austbuttonhistory.com/6th-june-2021/
Glenelg Yacht Club
The first Glenelg Yacht Club existed in 1858, but perhaps did not last for long. A new club started in 1874, the club deciding on their club buttons in 1877 …