Certificate of Robert Mackay's appointment as landing waiter, searcher, gauger and tide surveyor at Williamstown, signed by C.J. Latrobe and W. Lonsdale, January 1st 1853. Certificate of Robert Mackay's appointment as landing surveyor and tide inspector at Williamstown, signed by Charles Hotham and William Haines, May 11th 1855. Certificate of Robert Mackay's appointment as tide surveyor for the Customs Department at Williamstown, signed by Charles Hotham and illiam Haines, September 4th 1855. (This record has no MS number, numbers are H24269, H24270, H24271.).
