Sir James Stirling's route from Kojonup to Pinjarra, April 1837. Compiled by A. Hillman, December 1837.
A. Hillman and Lefroy - plan of route to the north and east of the Northam District, June/July 1846.
J. Forrest - rough plan of the country eastward of Champion Bay. Compiled from the exploration route of J. Forrest in 1869. Litho endorsed J. Forrest, 1873.
C.C. Hunt - explorations in Western Australia, 1864-1866 (Composite plan reduced from original) Survey Office, Perth.
C.C. Hunt - exploration track eastwards, February-October 1864 (Eastern sheet - see also nos. 23 & 24).
C.C. Hunt - country eastward of York - sheet III (Eastern sheet - see also nos. 25 & 28), 1864-1866.
C.C. Hunt - exploration track eastward, February-October 1864 (Central sheet - see also nos. 23 & 27).
F.T. Gregory - explorations in North Western Australia, April-November 1861 (Additions to 1865). Litho. compiled by Lands and Surveys, Melbourne, 1862.
C.C. Hunt - exploration track eastward, February-October 1864 (Western sheet, see also nos. 24 & 27).
J.W. Gregory - survey of part of the West coast of Australia in the Schooner "Thetis", 1847-48 (Lancelin - Peron Head).
A.C. Gregory - exploration to the northward and eastward of Toodyay, August and September 1846 (Eastern sheet).
A.C. Gregory - eye sketch of the country between Champion Bay and Moore River showing the route of Dr Von Sumner in search of coal, September 1847.
Lieut. B.F. Helpman - Part of the West Coast of Western Australia from Champion Bay to Gantheaume Bay as examined by Lieut. B.F. Helpman RN, December 1844.
Chart showing explorations about Roebuck Bay (and surrounds) up to 1864. Compiled by the Survey Office, Perth.
North-West Australia, J. Martin, 1864. (4 charts on 1 sheet) Chart 1: Bedout Island. Chart 2: Treacherous Reef - Caffarelli Island. Chart 3: Brecknock Harbour. Chart 4: Roebuck Bay.
Map of Camden Harbour, North-West Australia, March 1865 - William Phelps Assistant Surveyor, Geraldton, May 1865.
North-West Australia - chart compiled from the latest information in the Survey Office Perth, J.S. Roe, 1864 (addition by R.J. Sholl, 1865).
Plan showing the tracks of Mr T. Hooley with livestock overland from the Murchison to the Fortescue Rivers in 1866.