In Australia, it is quite simple, if ungrammatical and plain stupid. A bureaucratic body ( the Geographical Names Board) decided back in 1966 that no Australian place names should contain apostrophes. This means we are stuck with wrong-looking (and, in my view, plain wrong) names such as Devils Marbles (thankfully, we can use the Indigenous name, Karlu Karlu for that), Cooper Creek, Surfers Paradise, Crows Nest, Kings Cross, St Helens, St Georges Terrace, and the grammatical and spelling abomination that is the Melbourne suburb of Fishermans Bend (the Tasmanian town of St Marys is probably the second most grammatically appalling Australian place name). From mountain ranges and rivers through suburbs and down to the tiniest creek and laneway: no apostrophes, ever. This rule does not apply to individual buildings, so St Paul’s, St Patrick’s and St Mary’s cathedrals, for example, retain their apostrophes.
My understanding is that a similar situation applies to place names in the United States of America. But the United Kingdom retains its apostrophes: King’s Cross in London (unlike Kings Cross in Sydney), for example, does have an apostrophe.
The official name of Keoghs Creek in Tasmania has no apostrophe. While signwriters are often criticised for incorrect usage of apostrophes, this ‘error’ is one I am personally delighted to see.
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