Dispossession of Australian Indigenous Tribes - Who was Major Douglas?

[William Douglas]

Hobart Town Courier Saturday 25 September 1830

Black Line Dispossession of Indigenous Tribes 
GOVERNMENT ORDER. No. 10.
Colonial Secretary's Office, Sept., 1830. 

Extract:
4. Major Douglas will, on the seventh of October cause the following chain of posts to be occupied ; viz :—From the Coast near St. Patrick's Head, to the source of the St. Paul's River, and by that River and the South Esk, to Epping Forest, and Campbell Town. This line being taken up, the Parties composing it, will advance in a Southerly direction towards the eastern Marshes, and will thoroughly examine the country between their first Stations and the head of the Macquarie, and on the afternoon of the 12th Oct. they will halt with their left at a Mountain on the Oyster Bay Tier, on which a large fire is to be kept burning, and their right extending towards Malony's Sugar Loaf. To effect this movement, Major Douglas will reinforce the post at Avoca, and this force, under the orders of Capt. Wellman will be strengthened by such Parties as can be dispatched by the Police Magistrate of Campbell Town, and by the Roving Parties under Mr. Batman, and will receive the most effectual cooperation from Major Gray, who   will no doubt, be warmly seconded by Messrs. Legge, Talbot, Grant, Smith, Gray, Hepburn, Kearney, Bates, and all other Settlers in that neighbourhood.

Who was Major Douglas?

[William Douglas]

Found him!  http://www.douglashistory.co.uk/history/sholtodouglas.htm

Thanks to those who responded.