History of Gingkin Mystery Cache

A puzzle to learn about the history of Gingkin.

Cache is not at given co ordinates.

A google search can find the missing co ordinates.

Cache is located at South 33 53.AB0 East 149 55.CD0

A= First European settler was ? Whalan. Number of letters in first name. Take 2

B= Mr Whalan took up his land grant here in 18?1. Take 1

C= Gingkins elevation is 12?0 metres above sea level. Add 2

D= After Mr Whalans Gingkin station had been robbed by bushranger James McKewen, he set off with a police officer and his farm assistant Jeremiah B? to track down the bushranger who was hiding in the Jenolan Caves. Number of letters in surname. Add 1

You can check your answers for this puzzle on GeoChecker.com.