G'day John
I think 1854 is about ten years too early for anyone to have lived in Hokitika. The town did not exist until gold was found in the area in 1864.
However if you go to Paper Past
http://paperspast.natlib.govt.nz and search under the name Limming you will find a few reports of him in his duties. These include his appointment to Collingwood in 1863 but in 1864 he is a Customs man in Nelson and being assaulted. Later on he is in nelson where he appears as a witness in a couple of assault cases before a glowing tribute to him when he retired in July 1880.
Interestingly there is an August 1880 report of a Mrs Emma Limming causing an altercation between two men and reading between the lines you get the impression she may have been a member of the oldest profession. For the
record George Charles Limming married Emma E Tydeman in 1869. Ref1869/0979
Gets curious eh?