One Tree Hill.... I've just checked, it was the former name for Mount Victoria, change of name occurred when the Post Office was built in 1876 ....
Wow, I wonder how many NSW centric family history buffs think that they have forebears born out in the outback Wentworth district where there was another One Tree Hill ... when there's the possibility the birth was at what is now Mt Victoria .... One day I will find some spare moments to figure out why anyone would have given the One Tree Hill name to what is now Mt Victoria .... there's all those trees there, and it was definitely full of trees when Blaxland, Lawson and Wentworth crossed the Blue Mountains and stood at Mt York, then got across to Mt Vic, and thence to Mt Boyce and then got as far as Mt Blaxland ...
Afterall, from Mt York they saw they were nearly across, and they figured out to get to Mt Boyce would lead them to the slopes thus becoming the famous "first" explorers to cross the Blue Mountains .... and from memory that was in 1813.
Cheers, LB, many thanks for giving me the heads up on The Manor House ... its led Moi to have some good memories of moi late Dad's yarns.