Joseph Hatch started business in sea elephant and penguin oil on Macquarie Island according to the Australian newspaper The Argus dated Friday 19 July 1912

An item reported that Mr. Joseph Hatch leased Macquarie Island from the Tasmanian government. He intended to establish a business in sea elephant and penguin oil. His headquarters were to be located at Hobart Town instead of a harbour in New Zealand. He bought the brigantine Rachael Cohen which exchanged Adelaide for Hobart as homeport. To befitted out herself with oil fuelled engines for the first voyage towards Macquarie Island was she to transport 500 casks of oil to Hobart. The Daily Telegraph dated Wesnesday 28 July 1915 mentioned the company adding that the treatment plant was located at Hobart. The Rachel Cohen would leave on short notice the Bluff for Macquarie Island to load there oil for Hobart. Except for the transport of oil was she used for transporting general cargo between Hobart and the Bluff. 

Whaling schooner Elizabeth and Mary returned home according to the Australian Sydney General Trade List dated Thursday 1 October 1928

An item reported the arrival in the week ok 23-29 September of the schooner Elizabeth and Mary of 75 ton, W. Worth, coming from Macquarie Island and New Zealand loaded with 28 casks sea elephant oil and 333 fur seal skins. For account of Joseph Underwood. 

Australian seal hunter Lord Rodney returned home according to the Australian newspaper The Australian dated Saturday 29 July 1826

An item reported the arrival [at Sydney?] on last Wednesday of the brig Lord Rodney, W. Kennean loaded with 120 ton sea elephant oil leaving Macquarie Island on 15 July. 

Australian sealing brig Lord Rodney returned home according to the Australian newspaper The Australian dated Saturday 29 July 1826

An item reported the arrival [at Sydney?] on last Wednesday of the brig Lord Rodney, W. Kennean loaded with 120 ton sea elephant oil leaving Macquarie Island on 15 July.

Australian sealing schooner Sydney Packet returned home according to the Australian newspaper Colonial Times and Tasmanian Adventurer dated Friday 15 December 1826

An item reported the arrival on last Saturday the arrival of the schooner Sydney Packet captain Taylor coming from Port Jackson and which after unloading her cargo was bound for Macquarie Island for sea elephant oil. 

Australian sealer Elizabeth and Mary arrived at Sydney, Australia ccording to the Australian Sydney General Trade List dated Thursday 1 October 1928

An item reported the arrival in the week ok 23-29 September of the schooner Elizabeth and Mary of 75 ton, W. Worth, coming from Macquarie Island and New Zealand loaded with 28 casks sea elephant oil and 333 fur seal skins. For account of Joseph Underwood. 

Brig Brutus active in sea elephant hunting according to the Australian newspaperThe Sydney Gazette and New South Wales Advertiser dated Wednesday 3 May 1826

An item reported the arrival on last Sunday of the brig Brutus captain Rose loaded with 200 ton sea elephant oil coming from Macquarie Island which she left on 12 April.

Australia investigating possibilities of a commercial sea elephant oil industry according to the Australian newspaper The Townsville Daily Bulletin dated Wednesday 2 June 1948

In a newsitem dated Hobart 1 June it was reporte that sea elephant bulls which did not succeed in collecting a harem were killed at Heard Island due to the plans if an oil industry was possble. Premier Cosgrove was informed by the Federal Government that this was done by land-based parties at Heard and Macquarie Islands which surveyed the herds. At the moment existed only on South Georgia a commercial sea elephant oil industry.

Tasmanian government interested in establishing a sea elephant oil industry according to the Tasmanian newspaper The Mercury dated Wednesday 7 April 1948.

An item reported that the Tasmanian governement asked the Commonwealth Government for information how to establish a sea elephant oil industry. The oil was about 125 pound sterlington and suitable for the manafacture of paint and seemed to have a high vitamine value. The Federal government announced officially to be interested. Premier Gosgrove stated a day earlier to participate in such project and wanted to prevent an slaughter. Macquarie Island where a large number of sea elephants lived, was a Tasmanian dependency.