Thomas Orchard - Australia

Does anyone have any information on Thomas Orchard who emigrated to Australia between 1840 and 1856 (These dates are obtained from the administration of his fathers-in-laws will : the actual date is probably nearer 1850 than 1840). His wife(who went with him) was Ann Whitaker born 1829 in Brierley Hill,Staffs.,England. I do not know the names of any children.