“ Towards the end of his life Dr Mantell retired to London, where he died on the 10th of November 1852. His eldest son, Walter Baldock Durrant Mantell (1820–1895) , settled in New Zealand, and there attained high public positions, eventually being secretary for Crown-lands. He obtained remains of the Notornis, a recently extinct bird, and also brought forward evidence to show that the moas were contemporaries of man. ”