In what year was the man who sent three specimens of desert rat-kangaroo to John Gould born?
Desert rat-kangaroo:  It was discovered in the early 1840s and described by John Gould in London in 1843, on the basis of three specimens sent to him by George Grey, the governor of South Australia at the time. George Grey: Sir George Grey, KCB (14 April 1812 – 19 September 1898) was a British soldier, explorer, Governor of South Australia, twice Governor of New Zealand, Governor of Cape Colony (South Africa), the 11th Premier of New Zealand and a writer.
1812