Queensland State Archives posted a photo:
Royals…
The first two trees – two jacarandas – were planted in 1907 by Lord and Lady Chelmsford. The Prince planted a palm tree, the Queen Mother a hoop pine, which continues to thrive.
The Prince of Wales visited Coochin Coochin in 1920 during his visit to Australia, because the Captain of his ship, Captain North, was a relative of Gertrude Bell’s. While he only intended to stay one night in order to attend a function held in Boonah, he ended up staying five nights due to flooding in Wallace Creek from heavy rain.
According to Gertrude’s diary he played tennis, went mustering and enjoyed dancing at night during his time at Coochin. Some versions of local history claim there was an assassination attempt on the Prince by a drunk but there were no mentions of this in Gertrude’s diaries.
The Queen Mother visited Coochin in 1958,

