 This may have affected Simpson's commitment to remaining in the colony and a few years later, he put the Wolston estate up for sale and returned to England.According to the auction notice which appeared in the "Moreton Bay Courier" of 3 January 1860 the estate was by then well established with of fenced land, an extensive garden and orchards and 250 head of horses and 400 of cattle.Although appointed on 23 May 1860 as a life member of the Queensland Legislative Council, Simpson attended only once before he travelled to England.